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MSM64152A Datasheet(PDF) 6 Page - OKI electronic componets

Part No. MSM64152A
Description  4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit
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Maker  OKI [OKI electronic componets]
Homepage  http://www.oki.com
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MSM64152A Datasheet(HTML) 6 Page - OKI electronic componets

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¡ Semiconductor
MSM64152A/64152AL
PIN DESCRIPTIONS
Basic Functions
Pad
Power
Supply
Pin
Digital supply voltage(0 V)
Description
Type
7
Function
Oscillation
Test
RESET
7
45
44
43
42
41
46
42
41
40
39
38
43
Digital negative power supply (1.5 V spec.)
Bias output for LCD driver (3.0 V spec.)
Digital negative power supply (3.0 V spec.)
Bias output for LCD driver (1.5 V spec.)
Bias output for LCD driver (–4.5 V)
For connection to capacitors that generate bias for the
LCD driver
Negative power supply voltage pin for internal logic
(An internally generated constant voltage is present at this pin.)
Clock oscillation pins:
Either a crystal (32.768 kHz) and a capacitor (10 to 30 pF)
are connected to these pins or a resistor (1 MW) is.
47
48
44
45
I
O
55
54
53
52
51
50
I
I
I
Input pins for test
56
53
I
System reset input pin :
Setting this pin to "H" level puts this device into a reset state.
Then, setting this pin to "L" level starts executing an
instruction from address 000H.
This pin is internally connected to VSS1 or VSS2 through a
pull-down resistor.
Symbol
VDD
VSS1
VSS2
VSS3
C1
C2
VSSL
OSCO
OSC1
TST1
TST2
TST3
RESET


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