- 您现在的位置：买卖IC网 > PDF目录69381 > STK17T88-WF35 REAL TIME CLOCK, PDIP40 PDF资料下载
参数资料
| 型号： | STK17T88-WF35 |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDIP40 |
| 封装： | 0.600 INCH, 0.100 INCH PITCH, ROHS COMPLIANT, PLASTIC, DIP-40 |
| 文件页数： | 1/25页 |
| 文件大小： | 284K |
| 代理商： | STK17T88-WF35 |
April 2005
Document Control #ML0024 rev 1.2
1
STK17T88
nvTime
TM Event Data Recorder
32K x 8 AutoStore
TM nvSRAM
With Real-Time Clock
FEATURES
Data Integrity of Simtek nvSRAM Combined
with Full-Featured Real-Time Clock
o
Low Power, 300 nA Max, RTC current
o
Capacitor or battery backup for RTC
Watchdog Timer
Clock Alarm with programmable Interrupts
25ns, 35ns and 45ns Access Times
“Hands-off” Automatic STORE on Power Down
with only a small capacitor
STORE to QuantumTrap Initiated by
Software , device pin, or on Power Down
RECALL to SRAM Initiated by Software or
Power Up
Unlimited READ, WRITE and RECALL Cycles
High-reliability
o
Endurance to 1 Million Cycles
o
Retention to 100 years at 125 C
5mA Typical I
CC at 200ns Cycle Time
Single 3V +20%, -10% Operation
SSOP and DIP Packages, (ROHS compliant)
DESCRIPTION
The Simtek STK17T88 combines a 256 Kbit
nonvolatile static RAM with a full-featured real-time
clock in a reliable, monolithic integrated circuit. The
embedded
nonvolatile
elements
incorporate
Simtek’s QuantumTrap technology producing the
world’s most reliable nonvolatile memory. The
SRAM can be read and written an unlimited number
of times, while independent, nonvolatile data resides
in the nonvolatile elements.
The Real-Time Clock function provides an accurate
clock with leap year tracking and a programmable,
high accuracy oscillator. The Alarm function is pro-
grammable for one-time alarms or periodic seconds,
minutes, hours, or days. There is also a programma-
ble Watchdog Timer for process control.
BLOCK DIAGRAM
RO
W
D
E
CO
D
E
R
IN
P
U
T
B
U
FFERS
COLUMN DEC
G
E
W
COLUMN I/O
POWER
CONTROL
HSB
STORE/
RECALL
CONTROL
SOFTWARE
DETECT
A13 – A0
STORE
RECALL
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
VCC
VCAP
RTC
MUX
A14 – A0
X1
X2
INT
VRTCbat
VRTCcap
A5
A6
A7
A8
A9
A11
A12
A13
A14
A0 A1 A2 A3 A4 A10
Quantum Trap
512 X 512
STATIC RAM
ARRAY
512 X 512
Figure 1. Block Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| STK17T88-W25I | REAL TIME CLOCK, PDIP40 |
| STK17T88-W35 | REAL TIME CLOCK, PDIP40 |
| STK17T88-W25 | REAL TIME CLOCK, PDIP40 |
| STK17TA8-RF25ITR | PROGRAMMABLE TIMER, PDSO48 |
| STK17TA8-RF45I | PROGRAMMABLE TIMER, PDSO48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STK17TA8-RF25 | 功能描述:NVRAM 128Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| STK17TA8-RF25I | 功能描述:NVRAM 128Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| STK17TA8-RF25IL | 制造商:Cypress Semiconductor 功能描述: |
| STK17TA8-RF25ITR | 功能描述:NVRAM 128Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| STK17TA8-RF25TR | 功能描述:NVRAM 128Kbx8+RTC 2.7-3.6V RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。