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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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Low-Voltage 1.8/2.5/3.3V 16-Bit Transparent Latch
With 3.6V-Tolerant Inputs and Outputs (3-State, Non-Inverting)
The MC74VCX16373 is an advanced performance, non-inverting 16-bit transparent latch. It is designed for very high-speed, very low-power operation in 1.8V, 2.5V or 3.3V systems. The VCX16373 is byte controlled, with each byte functioning identically, but independently. Each byte has separate Output Enable and Latch Enable inputs. These control pins can be tied together for full 16-bit operation. When operating at 2.5V (or 1.8V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3V busses. It is guaranteed to be over-voltage tolerant to 3.6V. The MC74VCX16373 contains 16 D-type latches with 3-state 3.6V-tolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data on the Dn inputs enters the latches. In this condition, the latches are transparent, (a latch output will change state each time its D input changes). When LE is LOW, the latch stores the information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LE. The 3-state outputs are controlled by the Output Enable (OEn) inputs. When OE is LOW, the outputs are enabled. When OE is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches.
MC74VCX16373
VCX
LOW-VOLTAGE 1.8/2.5/3.3V 16-BIT TRANSPARENT LATCH
DT SUFFIX 48-LEAD PLASTIC TSSOP PACKAGE CASE 1201-01
* Designed for Low Voltage Operation: VCC = 1.8-3.6V * 3.6V Tolerant Inputs and Outputs * High Speed Operation: 3.0ns max for 3.0 to 3.6V * * * * * *
3.4ns max for 2.3 to 2.7V 6.0ns max for 1.8V Static Drive: 24mA Drive at 3.0V 18mA Drive at 2.3V 6mA Drive at 1.8V Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0V Near Zero Static Supply Current in All Three Logic States (20A) Substantially Reduces System Power Requirements Latchup Performance Exceeds 300mA ESD Performance: Human Body Model >2000V; Machine Model >200V
PIN NAMES
Pins OEn LEn D0-D15 O0-O15 Function Output Enable Inputs Latch Enable Inputs Inputs Outputs
This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. 10/97
(c) Motorola, Inc. 1997
1
REV 0.1
MC74VCX16373
OE1 1 O0 2 O1 3 GND 4 O2 5 O3 6 VCC 7 O4 8 O5 9 GND 10 O6 11 O7 12 O8 13 O9 14 GND 15 O10 16 O11 17 VCC 18 O12 19 O13 20 GND 21 O14 22 O15 23 OE2 24
48 LE1 47 D0 46 D1 45 GND 44 D2 43 D3 42 VCC 41 D4 40 D5 39 GND 38 D6 37 D7 36 D8 35 D9 34 GND 33 D10 32 D11 31 VCC 30 D12 29 D13 28 GND 27 D14 26 D15 25 LE2
OE1 LE1
1 48 nLE 47 Q D 3 Q D 5 Q D 6 Q D nLE 41 Q D 9 Q D nLE 38 Q D 12 Q D O7 11 O6 O5 8 O4 O3 O2 O1 2 O0
OE2 LE2
24 25 nLE 36 Q D 14 Q D 16 Q D 17 Q D nLE 30 Q D 20 Q D nLE 27 Q D 23 Q D O15 22 O14 O13 19 O12 O11 O10 O9 13 O8
D0
D8
nLE 46 D1
nLE 35 D9
44 D2
nLE
33 D10
nLE
43 D3
nLE
32 D11
nLE
D4
D12
40 D5
nLE
29 D13
nLE
D6
D14
37 D7
nLE
nLE 26 D15
Figure 1. 48-Lead Pinout (Top View)
Figure 2. Logic Diagram
Inputs LE1 X H H L OE1 H L L L D0:7 X L H X
Outputs O0:7 Z L H O0 LE2 X H H L
Inputs OE2 H L L L D8:15 X L H X
Outputs O8:15 Z L H O0
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, for ICC reasons, DO NOT FLOAT Inputs
MOTOROLA
2
LCX DATA BR1339 -- REV 2
MC74VCX16373
ABSOLUTE MAXIMUM RATINGS*
Symbol VCC VI VO Parameter DC Supply Voltage DC Input Voltage DC Output Voltage Value -0.5 to +4.6 -0.5 VI +4.6 -0.5 VO +4.6 -0.5 VO VCC + 0.5 IIK IOK DC Input Diode Current DC Output Diode Current -50 -50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range 50 100 100 -65 to +150 Output in 3-State Note 1.; Outputs Active VI < GND VO < GND VO > VCC Condition Unit V V V V mA mA mA mA mA mA C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute-maximum-rated conditions is not implied. 1. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO IOH IOL IOH IOL IOH IOL TA t/V Supply Voltage Input Voltage Output Voltage HIGH Level Output Current, VCC = 3.0V - 3.6V LOW Level Output Current, VCC = 3.0V - 3.6V HIGH Level Output Current, VCC = 2.3V - 2.7V LOW Level Output Current, VCC = 2.3V - 2.7V HIGH Level Output Current, VCC = 1.8V LOW Level Output Current, VCC = 1.8V Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V -40 0 (Active State) (3-State) Parameter Operating Data Retention Only Min 1.8 1.2 -0.3 0 0 Max 3.6 3.6 3.6 VCC 3.6 -24 24 -18 18 -6 6 +85 10 Unit V V V mA mA mA mA mA mA C ns/V
LCX DATA BR1339 -- REV 2
3
MOTOROLA
MC74VCX16373
DC ELECTRICAL CHARACTERISTICS (2.7V < VCC 3.6V)
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 2.) LOW Level Input Voltage (Note 2.) HIGH Level Output Voltage Condition 2.7V < VCC 3.6V 2.7V < VCC 3.6V 2.7V < VCC 3.6V; IOH = -100A VCC = 2.7V; IOH = -12mA VCC = 3.0V; IOH = -18mA VCC = 3.0V; IOH = -24mA VOL LOW Level Output Voltage 2.7V < VCC 3.6V; IOL = 100A VCC = 2.7V; IOL = 12mA VCC = 3.0V; IOL = 18mA VCC = 3.0V; IOL = 24mA II IOZ IOFF ICC Input Leakage Current 3-State Output Current Power-Off Leakage Current Quiescent Supply Current 2.7V < VCC 3.6V; 0V VI 3.6V 2.7V < VCC 3.6V; 0V VO 3.6V; VI = VIH or VIL VCC = 0V; 0V (VI, VO) 3.6V 2.7V < VCC 3.6V; VI = GND or VCC 2.7V < VCC 3.6V; VCC (VI, VO) 3.6V ICC Increase in ICC per Input 2.7V < VCC 3.6V; VIH = VCC - 0.6V 2. These values of VI are used to test DC electrical characteristics only. VCC - 0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 5.0 10 10 20 20 750 A A A A A A V Min 2.0 0.8 Max Unit V V V
DC ELECTRICAL CHARACTERISTICS (2.3V VCC 2.7V)
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 3.) LOW Level Input Voltage (Note 3.) HIGH Level Output Voltage Condition 2.3V VCC 2.7V 2.3V VCC 2.7V 2.3V VCC 2.7V; IOH = -100A VCC = 2.3V; IOH = -6mA VCC = 2.3V; IOH = -12mA VCC = 2.3V; IOH = -18mA VOL LOW Level Output Voltage 2.3V VCC 2.7V; IOL = 100A VCC = 2.3V; IOL = 12mA VCC = 2.3V; IOL = 18mA II IOZ IOFF ICC Input Leakage Current 3-State Output Current Power-Off Leakage Current Quiescent Supply Current 2.3V VCC 2.7V; 0V VI 3.6V 2.3V VCC 2.7V; 0V VO 3.6V; VI = VIH or V IL VCC = 0V; 0V (VI, VO) 3.6V 2.3V VCC 2.7V; VI = GND or VCC 2.3V VCC 2.7V; VCC (VI, VO) 3.6V 3. These values of VI are used to test DC electrical characteristics only. VCC - 0.2 2.0 1.8 1.7 0.2 0.4 0.6 5.0 10 10 20 20 A A A A A V Min 1.6 0.7 Max Unit V V V
MOTOROLA
4
LCX DATA BR1339 -- REV 2
MC74VCX16373
DC ELECTRICAL CHARACTERISTICS (1.8V VCC < 2.3V)
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage Condition 1.8V VCC < 2.3V 1.8V VCC < 2.3V VCC = 1.8V; IOH = -100A VCC = 1.8V; IOH = -6mA VOL LOW Level Output Voltage VCC = 1.8V; IOL = 100A VCC = 1.8V; IOL = 6mA II IOZ IOFF ICC Input Leakage Current 3-State Output Current Power-Off Leakage Current Quiescent Supply Current VCC = 1.8V; 0 VI 3.6V VCC = 1.8V; 0 VO 3.6V; VI = VIH or VIL VCC = 0V; 0V (VI, VO) 3.6V VCC = 1.8V; VI = VCC or GND VCC = 1.8V; VCC (VI, VO) 3.6V VCC - 0.2 1.4 0.2 0.3 5.0 10 10 20 20 A A A A V Min 0.7 x VCC 0.2 x VCC Max Unit V V V
AC CHARACTERISTICS (Note 4.; tR = tF = 2.0ns; CL = 30pF; RL = 500)
Limits TA = -40C to +85C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ ts th tw tOSHL tOSLH Parameter Propagation Delay Dn to On Propagation Delay LE to On Output Enable Time to High and Low Level Output Disable Time From High and Low Level Setup Time, High or Low Dn to LE Hold Time, High or Low Dn to LE LE Pulse Width, High Output-to-Output Skew (Note 5.) Waveform 1 1 2 2 3 3 3 Min 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.5 1.0 1.5 0.5 0.5 Max 3.0 3.0 3.1 3.1 3.5 3.5 3.5 3.5 VCC = 2.3V to 2.7V Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.0 1.5 0.5 0.5 Max 3.4 3.4 3.9 3.9 4.6 4.6 3.8 3.8 2.5 1.0 3.0 0.5 0.5 VCC = 1.8V Min Max 6.0 6.0 6.0 6.0 7.0 7.0 5.0 5.0 Unit ns ns ns ns ns ns ns ns
4. These AC parameters are preliminary and may be modified prior to release. For CL = 50pF, add approximately 300ps to the AC maximum specification. 5. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design.
LCX DATA BR1339 -- REV 2
5
MOTOROLA
MC74VCX16373
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 6.) Condition VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V VOLV Dynamic LOW Valley Voltage (Note 6.) VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V VOHV Dynamic HIGH Valley Voltage (Note 7.) VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V Typ 0.25 0.6 0.8 -0.25 -0.6 -0.8 1.5 1.9 V V Unit V
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V 2.2 6. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state. 7. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the HIGH state.
CAPACITIVE CHARACTERISTICS
Symbol CIN COUT CPD Parameter Input Capacitance Output Capacitance Power Dissipation Capacitance Condition Note 8. Note 8. Note 8., 10MHz Typical 6 7 20 Unit pF pF pF
8. VCC = 1.8, 2.5 or 3.3V; VI = 0V or VCC.
VIH Dn Vm Vm 0V tPLH On Vm tPHL VOH Vm VOL WAVEFORM 1 - PROPAGATION DELAYS tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns
Figure 3. AC Waveforms
MOTOROLA
6
LCX DATA BR1339 -- REV 2
MC74VCX16373
VIH OEn Vm Vm 0V tPZH On Vm 0V tPLH, tPHL tPZL Vm Vx VOL WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns tPLZ VCC tPHZ ts VOH Vy LEn Vm tw Vm th Dn Vm
VIH Vm 0V VIH
0V VOH On Vm VOL
On
WAVEFORM 3 - LE to On PROPAGATION DELAYS, LE MINIMUM PULSE WIDTH, Dn to LE SETUP AND HOLD TIMES tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns except when noted
Figure 4. AC Waveforms
VCC Symbol S bl VIH Vm Vx Vy 3.3V 0.3V 2.7V 1.5V VOL + 0.3V VOH - 0.3V 2.5V 0.2V VCC VCC/2 VOL + 0.15V VOH - 0.15V 1.8V VCC VCC/2 VOL + 0.15V VOH - 0.15V
VCC 6V or VCC x 2 OPEN GND
PULSE GENERATOR RT
DUT CL
RL RL
TEST tPLH, tPHL tPZL, tPLZ
SWITCH Open 6V at VCC = 3.3 0.3V; VCC x 2 at VCC = 2.5 0.2V; 1.8V
tPZH, tPHZ GND CL = 30pF or equivalent (Includes jig and probe capacitance) RL = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
Figure 5. Test Circuit
LCX DATA BR1339 -- REV 2
7
MOTOROLA
MC74VCX16373
OUTLINE DIMENSIONS
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 1201-01 ISSUE A
48X
K REF 0.12 (0.005)
M
TU
S
V
S
K K1 J J1
48
25
M
SECTION N-N L B -U- N
1 24
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 5. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 6. DIMENSIONS A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 12.40 12.60 6.00 6.20 --- 1.10 0.05 0.15 0.50 0.75 0.50 BSC 0.37 --- 0.09 0.20 0.09 0.16 0.17 0.27 0.17 0.23 7.95 8.25 0_ 8_ INCHES MIN MAX 0.488 0.496 0.236 0.244 --- 0.043 0.002 0.006 0.020 0.030 0.0197 BSC 0.015 --- 0.004 0.008 0.004 0.006 0.007 0.011 0.007 0.009 0.313 0.325 0_ 8_
0.254 (0.010)
PIN 1 IDENT.
A -V-
N F DETAIL E M 0.25 (0.010)
D 0.076 (0.003) -T- SEATING
PLANE
C DETAIL E G H
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MC74VCX16373/D LCX DATA BR1339 -- REV 2

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