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參數(shù)資料
| 型號： | MSM62881 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | CMOS Single-Chip Microcomputer for IC Card(用于IC卡的8位微計算機) |
| 中文描述： | CMOS單芯片IC卡微機（用于集成電路卡的8位微計算機） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 69K |
| 代理商： | MSM62881 |
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MSM62881
Semiconductor
Semiconductor
MSM62881
CMOS SINGLE-CHIP MICROCOMPUTER FOR IC CARD
GENERAL DESCRIPTION
The MSM62881 is a CMOS 8-bit single-chip microcomputer for IC cards. The MSM62881 is an
upwardly compatible model of the MSM62840/880.
FEATURES
ROM
EEPROM
RAM
Clock frequency
: 16384 bytes
: 8192 bytes
: 424 bytes
: input
internal 15 MHz maximum (5.0 MHz max.)
at 5 V
±
10% (at 3 V
±
10%)
: 800 ns minimum at 5.0 MHz
: 294
: 2.7 to 5.5 V
: 6
7.5 MHz maximum (5.0 MHz max.)
Instruction execution time
Number of instructions
Power supply voltage
Number of pins
Operating temperature range: –40
°
C to 85
°
C
1) Low power 8-bit microcomputer using the Oki-original nX-8/50 CPU core
2) Simplified write and testing of EEPROM by means of the built-in control ROM (C-ROM).
3) Various security measures to protect memory data and prevent CPU runaway
q
EEPROM rewrite inhibit Fuse (settable by page).
w
Power ON reset.
e
CLK pin and
RES
pin are connected to pull-down resistors.
r
Power supply low/high voltage detector
t
High frequency limiter and low frequency detector for the CLK frequency
y
ROM address scramble
u
C-ROM access restriction
4) Sleep mode to implement low power consumption
5) Timer for baud rate setup to make the data transfer program efficient
6) EEPROM page write function which enables writing a maximum of 32 bytes batch data
7) EEPROM instruction execution
8) Limitation by page of the EEPROM instruction execution (mask option)
9) Setting to enable/disable ROM access by EEPROM instruction execution (mask option)
10)Clock frequency doubler
11)Random number generator
12)Second SIO can be added.
Unde Deveopmen
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