參數(shù)資料
型號(hào): CAT25C04X
英文描述: Supervisory Circuits with SPI Serial E2PROM, Precision Reset Controller and Watchdog Timer
中文描述: 監(jiān)控電路具有SPI串行E2PROM,精密復(fù)位控制器和看門狗定時(shí)器
文件頁數(shù): 12/12頁
文件大小: 160K
代理商: CAT25C04X
9-106
CAT25CXXX
Stock No. 21085-01 4/98
Advanced
Notes:
(1) The device used in the above example is a 25C161SI-30TE13 (RESET, SOIC, Industrial Temperature, 3.0-3.15 Reset Threshold
Voltage, Tape & Reel)
ORDERING INFORMATION
DESIGN CONSIDERATIONS
The CAT25CXXX powers up in a write disable state and
in a low power standby mode. A WREN instruction must
be issued to perform any writes to the device after power
up. Also,on power up
CS
should be brought low to enter
a ready state and receive an instruction. After a suc-
cessful byte/page write or status register write the
CAT25CXXX goes into a write disable mode.
CS
must
be set high after the proper number of clock cycles to
start an internal write cycle. Access to the array during
an internal write cycle is ignored and programming is
continued. On power up,SO is in a high impedance. If
an invalid op code is received, no data will be shifted into
the CAT25CXXX, and the serial output pin (SO) will
remain in a high impedance state until the falling edge
of
CS
is detected again.
The V
CC
sense provides write protection when V
CC
falls
below the reset threshold value (V
TH
). The V
CC
lock out
inhibits writes to the serial EEPROM whenever V
CC
falls
below (power down) V
TH
or until V
CC
reaches the reset
threshold (power up) V
TH
.
Package
P = PDIP
S = 8-pin SOIC
S16 = 16-pin SOIC
U14 = 14-pin TSSOP
Prefix
Device #
Suffix
25C16
S
I
TE13
Product
Number
25C32: 32K
25C16:16K
25C08: 8K
25C04: 4K
25C02: 2K
Tape & Reel
TE13: 2000/Reel
CAT
Temperature Range
Blank = Commercial (0C to +70C)
I = Industrial (-40C to +85C)
A = Automotive (-40 to +105C)*
* -40C to +125C is available upon request
Optional
Company ID
-30
Reset Threshold
Voltage
45: 4.5-4.75V
42: 4.25-4.5V
30: 3.0-3.15V
28: 2.85-3.0V
25: 2.55-2.7V
17: 1.7-1.8V
1
RESET
1. RESET
2.
RESET
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