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IZ1236 8-DIGIT CALCULATOR WITH MARKER
The IZ1236R is a single chip CMOS LSI with 8-digitt arithmetic operation, with marker, LCD control, and auto power off function, designed for FEM LCD operation with a 1.5V power supply. FUNCTIONS: - basic arithmetical operations over eight-digit numbers; - operations with memory; - percentage calculation; - square root calculation; - calculation of reverse value of number; - operations with constants; - indication of additional operations. Microcircuit.
ABSOLUTE MAXIMUM RATINGS
Symbol UDD USB UIH UIL amb stg Name of parameter Supply voltage Supply voltage from solar battery input voltage of high level Input voltage of low level Operating temperature range Storage temperature Extreme mode min max 1.1 1.1 UDD-0.4 0 0 1.8 3.0 UDD 0.4 55 Limiting mode min max -0.3 -0.3 -0.3 -60 2.1 3.3 UDD+0.3 125 Unit V V V V

1
IZ1236
ELECTRICAL CHARACTERISTICS (Ta = 25oC, VDD = +3.0V0.2V, VSS=0V )
Symbol Name of the parameter Mode of measurement Standard min max 0.15 0.2 0.2 0.2 1.3 1.7 2.0 V Unit
UOL UOL1
UOH1
Output voltage of low level on outputs P1, UDD =1.5 V P2, A2-A5 IOL=15 Output voltage of low level on outputs 1-8, UDD =1.1 V 1-8, 1-8, 1-3 UDD =1.5 V UDD =1.8 V Output voltage of high level on outputs 1- UDD =1.1 V 3 UDD =1.5 V Output voltage of high level on outputs 18, 1-8, 1-8, 1-3 UDD =1.8 V UDD =1.1 V UDD =1.5 V
V V
0.9 1.3 1.6 2.0 2.8 3.4 2.0 1.6 0.3 -
V
UOH2
UC UST IIL IIH Idis Iopr Ioff Td
Voltage on voltage doubler Voltage on stabilizer of solar battery Input current of low level on inputs K2-K6 Input current of high level on inputs K2-K6 Consumption current, in mode : - "disoperation"; - "in operation "; - " switched off" Period of displaying information on LCD
UDD =1.8 V UDD =1.1 V UI =3.0 V UDD =1.5 V UIL =0 V UDD =1.8 V UIH =1.8 V UDD =1.3 V UDD =1.1 V UDD =1.5 V UDD =1.3 V
2.0 3.0 1.0 5.0 7.0 0.1 18
V V
-
m
2
IZ1236
PURPOSE OF CONTACT PADS
Number of contact pad 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Symbol USB 4 6 5 1 2 5 4 3 2 2 3 TST VB VA VC GND H3 H2 c8 b8 a8 c7 b7 a7 c6 b6 a6 c5 b5 a5 c4 b4 a4 c3 b3 a3 c2 b2 a2 c1 b1 a1 H1 UDD UOP Purpose Input of solar battery stabilizer Keyboard control input Keyboard control input Keyboard control input Keyboard strobe output Keyboard strobe output Keyboard strobe output Keyboard strobe output Keyboard strobe output Keyboard strobe output Keyboard control input Keyboard control input Test input Pin for capacity connection Pin for capacity connection Pin for capacity connection General output LCD general electrode control output LCD general electrode control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD segment control output LCD general electrode control output Power pin from voltage source Solar battery stabilizer output
Note - LCD -liquid crystal display
3
IZ1236
COORDINATES OF CONTACT PADS
Number of contact pad 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Symbol USB K4 K6 K5 P1 P2 A5 A4 A3 A2 K2 K3 TST VB VA VC GND H3 H2 c8 b8 a8 c7 Coordinates X (mm) 0.083 0.103 0.251 0.396 0.541 0.683 0.817 0.948 1.079 1.210 1.341 1.472 1.680 1.783 1.783 1.783 1.783 1.783 1.783 1.783 1.783 1.783 1.783 Y (mm) 0.319 0.103 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.101 0.265 0.396 0.649 0.857 1.041 1.172 1.303 1.434 1.565 1.696 Number of contact pad 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Symbol b7 a7 c6 b6 a6 c5 b5 a5 c4 b4 a4 c3 b3 a3 c2 b2 a2 c1 b1 a1 H1 UDD UOP Coordinates X (mm) 1.685 1.554 1.423 1.292 1.161 1.030 0.899 0.768 0.637 0.506 0.375 0.244 0.113 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 Y (mm) 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.827 1.630 1.488 1.357 1.226 1.095 0.964 0.833 0.702 0.571 0.440
4
IZ1236
APPLICATION SCHEME WITH THE USE OF CHEMICAL POWER SUPPLY ELEMENT
13 a1-a5, b1-b4, c1-c4
11 a6-a8, b5-b8, c5-c8
H1
1
b3 c3 a4 b4 c4 a5 b5 c5 a6 b6 c6 a7 b7 36 35 34 33 32 31 30 29 28 27 26 25 24 23 c7 22 a8 21 b8 20 c8
a3 37 c2 38 b2 39 a2 40 c1 41 b1 42 a1 43 H1 44 33 UDD 45 UOP 46 USB 01 02 03 04 05 06 07 08 09 10 11 12 K4 K6 K5 P1 P2 A5 A4 A3 A2 K2 K3 +
IZ1236MR
19 H2 18 H3 17 GND 16 VC 15 VA 14 VB 0.1
-
13
TST
3 6
2
K5 K6
P1
ON/C
P2
X
A5
+
A4
A3
6
A2
3
OFF
CE
9
5
2
K4
ON/CE
M+
M-
8
4
1
K2
+/RM CM
%
7
RCM
0
K3
5
, .
H2, H3
2 0.1
.
,
.
.
,
, .
, . . ..
+
IZ1236
APPLICATION SCHEME WITH THE USE OF SOLAR BATTERY
13 a1-a5, b1-b4, c1-c4
11 a6-a8, b5-b8, c5-c8
H1
1
b3 c3 a4 b4 c4 a5 b5 c5 a6 b6 c6 a7 b7 36 35 34 33 32 31 30 29 28 27 26 25 24 23 c7 22 a8 21 b8 20 c8
a3 37 c2 38 b2 39 a2 40 c1 41 b1 42 a1 43 H1 44 33 UDD 45 UOP 46 USB 01
IZ1236MR
19 H2 18 H3 17 GND 16 VC 15 VA 14 VB 0.1
-
SB
02 03 04 05 06 07 08 09 10 11 12 K4 K6 K5 P1 P2 A5 A4 A3 A2 K2 K3
13
TST
3 6
2
K5 K6
P1
ON/C
P2
X
A5
+
A4
A3
6
A2
3
OFF
CE
9
5
2
K4
ON/CE
M+
M-
8
4
1
K2
+/RM CM
%
7
RCM
0
K3
6
, .
H2, H3
2 0.1
.
,
.
.
,
, .
, . . ..
+

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