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参数资料
| 型号： | MM58167MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, UUC24 |
| 封装： | WAFER-24 |
| 文件页数： | 1/13页 |
| 文件大小： | 195K |
| 代理商： | MM58167MWC |
TLF11070
MM58167B
Microprocessor
Real
Time
Clock
October 1990
MM58167B
Microprocessor Real Time Clock
General Description
The MM58167B is a low threshold metal gate CMOS circuit
that functions as a real time clock in bus oriented microproc-
essor systems The device includes an addressable real
time counter 56 bits of RAM and two interrupt outputs A
POWER DOWN input allows the chip to be disabled from
the rest of the system for standby low power operation The
time base is a 32768 kHz crystal oscillator
Features
Y
Microprocessor compatible (8-bit data bus)
Y
Milliseconds through month counters
Y
56 bits of RAM with comparator to compare the real
time counter to the RAM data
Y
2 INTERRUPT OUTPUTS with 8 possible interrupt
signals
Y
POWER DOWN input that disables all inputs and out-
puts except for one of the interrupts
Y
Status bit to indicate rollover during a read
Y
32768 kHz crystal oscillator
Y
Four-year calendar (no leap year)
Y
24-hour clock
Connection Diagrams
Dual-In-Line Package
TLF11070 – 1
Top View
Order Number MM58167BN
See NS Package Number N24A
PCC Package
TLF11070 – 2
Top View
Order Number MM58167BV
See NS Package Number V28A
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM58174 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
| MM58174A | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
| MM58174AN | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
| MM58201 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Multiplexed LCD Driver |
| MM58241 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:MM58241 High Voltage Display Driver |
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