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HD74HC620, HD74HC623
Octal Bus Transceivers (with inverted 3-state outputs) Octal Bus Transceivers (with 3-state outputs)
REJ03D0636-0200 (Previous ADE-205-516) Rev.2.00 Mar 30, 2006
Description
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The control function implementation allows for maximum flexibility in timing. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic levels at the enable inputs (GBA and GAB). The enable inputs can be used to disable the device so that the buses are effectively isolated. The dual-enable configuration gives these devices the capability to store data by simultaneous enabling of GBA and GAB. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of bus lines (16 in all) will remain at their last states. The 8-bit codes appearing on the two sets of buses will be identical for the HD74HC623 or complementary for the HD74HC620.
Features
* High Speed Operation: tpd (Bus to Bus) = 12 ns typ (CL = 50 pF) * High Output Current: Fanout of 15 LSTTL Loads (QA to QH outputs) * Wide Operating Voltage: VCC = 2 to 6 V * Low Input Current: 1 A max * Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C) * Ordering Information
Part Name HD74HC620P HD74HC620FPEL HD74HC623FPEL HD74HC620RPEL HD74HC623RPEL Package Type DILP-20 pin SOP-20 pin (JEITA) SOP-20 pin (JEDEC) Package Code (Previous Code) PRDP0020AC-B (DP-20NEV) PRSP0020DD-B (FP-20DAV) PRSP0020DC-A (FP-20DBV) P FP RP Package Abbreviation -- EL (2,000 pcs/reel) EL (1,000 pcs/reel) Taping Abbreviation (Quantity)
Note: Please consult the sales office for the above package availability.
Function Table
Enable Inputs GBA L H H L GAB L H L H HD74HC620 B data to A bus A data to B bus Isolation B data to A bus, A data to B bus Operation HD74HC623 B data to A bus A data to B bus Isolation B data to A bus, A data to B bus
Rev.2.00 Mar 30, 2006 page 1 of 11
HD74HC620, HD74HC623
Pin Arrangement
Enable GAB 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 (Top view) 20 VCC 19 Enable GBA 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8
Rev.2.00 Mar 30, 2006 page 2 of 11
HD74HC620, HD74HC623
Logic Diagram
HD74HC620
GBA GAB VCC
A1 VCC
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8
Rev.2.00 Mar 30, 2006 page 3 of 11
HD74HC620, HD74HC623 HD74HC623
GBA GAB VCC
A1 VCC
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
A8
B8
Absolute Maximum Ratings
Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Storage temperature Symbol VCC VIN, VOUT IIK, IOK IOUT ICC or IGND PT Tstg Ratings -0.5 to 7.0 -0.5 to VCC +0.5 20 35 75 500 -65 to +150 Unit V V mA mA mA mW C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Rev.2.00 Mar 30, 2006 page 4 of 11
HD74HC620, HD74HC623
Recommended Operating Conditions
Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time Note:
*1
Symbol VCC VIN, VOUT Ta tr , tf
Ratings 2 to 6 0 to VCC -40 to 85 0 to 1000 0 to 500 0 to 400
Unit V V C
Conditions
VCC = 2.0 V ns VCC = 4.5 V VCC = 6.0 V
1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics.
Electrical Characteristics
Ta = 25C Item Input voltage Symbol VCC (V) VIH 2.0 4.5 6.0 VIL 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 VOL 2.0 4.5 6.0 4.5 Off-state output current Input current Quiescent supply current IOZ Iin ICC 6.0 6.0 6.0 6.0 Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.18 5.68 -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- 2.0 4.5 6.0 -- -- 0.0 0.0 0.0 -- -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.26 0.26 0.5 0.1 4.0 Ta = -40 to+85C Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.13 5.63 -- -- -- -- -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 5.0 1.0 40 V IOH = -6 mA IOH = -7.8 mA Vin = VIH or VIL IOL = 20 A V Unit V Test Conditions
Output voltage
VOH
V
Vin = VIH or VIL IOH = -20 A
IOL = 6 mA IOL = 7.8 mA A Vin = VIH or VIL, Vout = VCC or GND A Vin = VCC or GND A Vin = VCC or GND, Iout = 0 A
Rev.2.00 Mar 30, 2006 page 5 of 11
HD74HC620, HD74HC623
Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25C Item Propagation delay time Output enable time Output disable time Output rise/fall time Input capacitance Symbol VCC (V) tPLH tPHL tZH tZL tHZ tLZ tTLH tTHL Cin 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 -- Min -- -- -- -- -- -- -- -- -- -- -- -- -- Typ -- 12 -- -- 12 -- -- 16 -- -- 4 -- 5 Max 100 20 17 150 30 26 150 30 26 60 12 10 10 Ta = -40 to +85C Min -- -- -- -- -- -- -- -- -- -- -- -- -- Max 125 25 21 190 38 33 190 38 33 75 15 13 10 ns ns Unit ns Test Conditions
ns
pF
Test Circuit
HD74HC620
VCC VCC
GBA
See Function Table
Input Pulse Generator Zout = 50
Output A1 B1 CL = 50 pF GAB TEST t PLH / t PHL t ZH/ t HZ t ZL / t LZ S2 OPEN GND VCC S1 1 k S2 OPEN GND VCC
Notes : 1. CL includes probe and jig capacitance. 2. A2-B2, A3-B3, A4-B4, A5-B5, A6-B6, A7-B7, A8-B8 are identical to above load circuit. 3. S1 is a input / output swich.
Rev.2.00 Mar 30, 2006 page 6 of 11
HD74HC620, HD74HC623 HD74HC623
VCC VCC
GBA
See Function Table
Input Pulse Generator Zout = 50
Output A1 B1 CL = 50 pF GAB TEST t PLH / t PHL t ZH/ t HZ t ZL / t LZ S2 OPEN GND VCC S1 1 k S2 OPEN GND VCC
Notes : 1. CL includes probe and jig capacitance. 2. A2-B2, A3-B3, A4-B4, A5-B5, A6-B6, A7-B7, A8-B8 are identical to above load circuit. 3. S1 is a input / output swich.
Waveforms
HD74HC620
* Waveform - 1
tr 90 % 50 % 10 % t PHL 90 % 50 % 10 % t THL 90 % 50 %
tf VCC 10 % t PLH 90 % 50 % 10 % t TLH 0V
Input A or B
VOH VOL
Output B or A
Notes : 1. Input waveform : PRR 1 MHz, duty cycle 50%, tr 6 ns, tf 6 ns 2. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 7 of 11
HD74HC620, HD74HC623 HD74HC623
* Waveform - 2
tf Enable Input GBA 90 % 50 % 10 % t ZL Waveform - A 50 % t ZH Waveform - B 50 % t HZ 90 % 10 % t LZ tr 90 % 50 % VCC 0V VOH 10 % VOL VOH VOL
* Waveform - 3
tr Enable Input GAB 90 % 50 % 10 % t ZL Waveform - A 50 % t ZH Waveform - B 50 % t HZ 90 % 90 % 50 % 10 % t LZ tf VCC 0V VOH 10 % VOL VOH VOL
Notes : 1. Input waveform : PRR 1 MHz, duty cycle 50%, tr 6 ns, tf 6 ns 2. Waveform - A is for an output with internal conditions such that the output is low except when disabled by the output control. 3. Waveform - B is for an output with internal conditions such that the output is high except when disabled by the output control. 4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 8 of 11
HD74HC620, HD74HC623 HD74HC620, HD74HC623
* Waveform - 4
tr 90 % 50 % 10 % t PLH 90 % 50 % 10 % t TLH 90 % 50 %
tf VCC 10 % t PHL 90 % 50 % 10 % t THL 0V
Input A or B
VOH VOL
Output B or A
Notes : 1. Input waveform : PRR 1 MHz, duty cycle 50%, tr 6 ns, tf 6 ns 2. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 9 of 11
HD74HC620, HD74HC623
Package Dimensions
JEITA Package Code P-DIP20-6.3x24.5-2.54 RENESAS Code PRDP0020AC-B Previous Code DP-20NEV MASS[Typ.] 1.26g
D
20
11
1 0.89 b3
10
Z
A1
A
E
Reference Symbol
Dimension in Millimeters
Min
e
bp
e1
c
( Ni/Pd/Au plating )
e1 D E A A1 bp b3 c e Z L
Nom Max 7.62 24.50 25.40 6.30 7.00 5.08
L
0.51 0.40 0.48 0.56 1.30 0.19 0.25 0.31 0 15 2.29 2.54 2.79 1.27 2.54
JEITA Package Code P-SOP20-5.5x12.6-1.27
RENESAS Code PRSP0020DD-B
Previous Code FP-20DAV
MASS[Typ.] 0.31g
*1
D 11
F
20
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
bp
HE
E
Index mark
*2
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
10 bp x M L1
Reference Symbol
c
Dimension in Millimeters
y
A1
L
Detail F
D E A2 A1 A bp b1 c c1 HE e x y Z L L1
Min Nom Max 12.60 13.0 5.50 0.00 0.10 0.20 2.20 0.34 0.40 0.46 0.15 0.20 0.25 0 8 7.50 7.80 8.00 1.27 0.12 0.15 0.80 0.50 0.70 0.90 1.15
Rev.2.00 Mar 30, 2006 page 10 of 11
A
HD74HC620, HD74HC623
JEITA Package Code P-SOP20-7.5x12.8-1.27 RENESAS Code PRSP0020DC-A Previous Code FP-20DBV MASS[Typ.] 0.52g
*1
D
F 11
20
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET.
bp
HE E
*2
Index mark
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
c
Reference Symbol
Dimension in Millimeters
10 bp x M L1
A1
y
L
Detail F
D E A2 A1 A bp b1 c c1 HE e x y Z L L1
Min Nom Max 12.80 13.2 7.50 0.10 0.20 0.30 2.65 0.34 0.40 0.46 0.20 0.25 0.30 0 8 10.00 10.40 10.65 1.27 0.12 0.15 0.935 0.40 0.70 1.27 1.45
Rev.2.00 Mar 30, 2006 page 11 of 11
A
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