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參數(shù)資料
| 型號(hào)： | M48T59YPC |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5 PIN DIN CABLE 10 FT |
| 中文描述： | 64千位8KB的x8 SRAM的計(jì)時(shí)器 |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 168K |
| 代理商： | M48T59YPC |
1/21
PRELIMINARY DATA
October 1999
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
M48T59
M48T59Y/M48T59V
64 Kbit (8Kb x8) TIMEKEEPER
SRAM
I
INTEGRATED ULTRA LOW POWER SRAM,
REAL TIME CLOCK, POWER-FAIL CONTROL
CIRCUIT and BATTERY
I
FREQUENCY TEST OUTPUT for REAL TIME
CLOCK SOFTWARE CALIBRATION
I
AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
I
WRITE PROTECT VOLTAGES
(V
PFD
= Power-fail Deselect Voltage):
– M48T59: 4.5V
≤
V
PFD
≤
4.75V
– M48T59Y: 4.2V
≤
V
PFD
≤
4.5V
– M48T59V: 2.7V
≤
V
PFD
≤
3.0V
I
SELF-CONTAINED BATTERY and CRYSTAL
in the CAPHAT DIP PACKAGE
I
PACKAGING INCLUDES a 28-LEAD SOIC and
SNAPHAT
TOP
(to be Ordered Separately)
I
SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT TOP which
CONTAINS the BATTERY and CRYSTAL
I
MICROPROCESSOR POWER-ON RESET
(Valid even during battery back-up mode)
I
PROGRAMMABLE ALARM OUTPUT ACTIVE
in the BATTERY BACK-UP MODE
I
BATTERY LOW FLAG
Figure 1. Logic Diagram
AI01380E
13
A0-A12
W
DQ0-DQ7
VCC
M48T59
M48T59Y
M48T59V
G
VSS
8
E
RST
IRQ/FT
Table 1. Signal Names
A0-A12
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
IRQ/FT
Interrupt / Frequency Test
Output (Open Drain)
RST
Power Fail Reset Output
(Open Drain)
E
Chip Enable
G
Output Enable
W
Write Enable
V
CC
Supply Voltage
V
SS
Ground
28
1
28
1
SOH28 (MH)
SNAPHAT (SH)
Battery/Crytstal
PCDIP28 (PC)
Battery/Crystal
CAPHAT
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| M48T59YSH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM |
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| M48T86MH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V PC REAL TIME CLOCK |
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