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PDF MSM64162D Data sheet ( Hoja de datos )
| Número de pieza | MSM64162D | |
| Descripción | 4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver | |
| Fabricantes | OKI electronic componets | |
| Logotipo |  |
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E2E0034-38-95
¡ Semiconductor¡ Semiconductor
This versionM: SSeMp6. 41196982D
Previous version: Mar. 1996
MSM64162D
4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver
GENERAL DESCRIPTION
The MSM64162D is a low power 4-bit microcontroller that employs Oki's original CPU core nX-
4/20.
The MSM64162D has 1-channel RC oscillation type A/D converter, LCD driver for up to 80
segments, and buzzer output port. It is best suited for applications such as low power
thermometers and clinical thermometers.
FEATURES
• Operating range
Operating frequencies
: 32.768 kHz
Operating voltage
: 1.25 to 1.7 V (1.5 V spec.)
2.0 to 3.5 V (3 V spec.)
2.2 to 3.5 V (3 V spec., 1/2 duty)
Operating temperature
: –40 to +85°C
• Memory space
Internal program memory
Internal data memory
: 2016 bytes
Data:Sh1e2e8t4nUib.cbolems
• Minimum instruction execution time : 91.6 ms @ 32.768 kHz
• RC oscillation type A/D converter : 1 channel (2 sensors can be connected)
• LCD driver
: 24 outputs; duty ratio switchable by software
(1) At 1/4 duty and 1/3 bias
: 80 segments (max)
(2) At 1/3 duty and 1/3 bias
: 63 segments (max)
(3) At 1/2 duty and 1/2 bias
: 44 segments (max)
• Buzzer driver
: 1 output (4 output modes selectable)
• Capture circuit
: 2 channels
• Watchdog timer
• Clock
: 32.768 kHz crystal oscillator
CPU clock
: 32.768 kHz
Time base clock
: 32.768 kHz
• Power supply voltage
: 1.5 V/3 V (selectable by mask option)
• I/O port
Input-output port
: 2 ports ¥ 4 bits
Input port
: 1 port ¥ 4 bits
Output port
: 1 port ¥ 4 bits
(8 out of the 24 LCD driver outputs can be used
as output-only ports by mask option.)
• Interrupt sources
External interrupt
: 2 sources
Internal interrupt
: 7 sources
• Battery check circuit
: 1 (incorporated into the input-only port)
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PIN CONFIGURATION (TOP VIEW) (continued)
MSM64162D
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TST2 1
P0.0 2
P0.1 3
P0.2 4
P0.3 5
RT0 6
(NC) 7
CRT0 8
RS0 9
CS0 10
IN0 11
(NC) 12
(NC) 13
(NC) 14
(NC) 15
(NC) 16
P2.0 17
P2.1 18
P2.2 19
P2.3 20
P3.0 21
(NC) 22
P3.1 23
(NC) 24
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64 L19/P5.3
63 L18/P5.2
62 L17/P5.1
61 L16/P5.0
60 L15
59 (NC)
58 L14
57 L13
56 L12
55 L11
54 L10
53 (NC)
52 L9
51 L8
50 L7
49 L6
48 L5
47 L4
46 L3
45 L2
44 L1
43 L0
42 C2
41 C1
DataShee
80-Pin Plastic QFP
Notes: 1. Pins marked as (NC) are no-connection pins which are left open.
2. VDD should be supplied from pin 74. Pin 32 is internally connected to VDD.
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MSM64162D
Data Memory
The data memory area consists of 8 banks and each bank has 256 nibbles (256 ¥ 4 bits).
The data RAM is assigned to BANK 7 and peripheral ports are assigned to BANK 0.
7FFH
780H
77FH
700H
BANK 7
Data RAM area
Unused area
Data/Stack area (128 nibbles)
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Inaccessible area
07FH
Contents of 000H to 07FH
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SFR area
100H
0FFH
080H
07FH
000H
Unused area
BANK 0
4 bits
000H
Data Memory Map
The data RAM area (128 nibbles) is shared by the stack area. The stack is a memory starting from
address 7FFH toward the low-order addresses where 4 nibbles are used by Subroutine Call
Instruction and 8 nibbles are used by an interrupt.
The addresses 080H to 0FFH of BANK 0 and the addresses 700H to 77FH of BANK 7 are not
assigned as the data memory, so access to these addresses has no effect. Moreover, it is
impossible to access BANK 1 to BANK 6.
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| Páginas | Total 37 Páginas | |
| PDF Descargar | [ Datasheet MSM64162D.PDF ] | |
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