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參數資料
| 型號： | X5329S8I-2.7 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數： | 1/21頁 |
| 文件大?。?/td> | 115K |
| 代理商： | X5329S8I-2.7 |
REV 1.1.1 3/6/01
Characteristics subject to change without notice.
1 of 21
www.xicor.com
Replaces X25328/X25329
X5328/X5329
CPU Supervisor with 32Kbit SPI EEPROM
FEATURES
Low V
—Five standard reset threshold voltages
—Re-program low V
using special programming sequence
—Reset signal valid to V
Long battery life with low power consumption
—<50μA max standby current, watchdog on
—<1μA max standby current, watchdog off
—<400μA max active current during read
32Kbits of EEPROM
Built-in inadvertent write protection
—Power-up/power-down protection circuitry
—Protect 0, 1/4, 1/2 or all of EEPROM array with
Block Lock
protection
—In circuit programmable ROM mode
2MHz SPI interface modes (0,0 & 1,1)
Minimize EEPROM programming time
—32-byte page write mode
—Self-timed write cycle
—5ms write cycle time (typical)
2.7V to 5.5V and 4.5V to 5.5V power supply
operation
Available packages
—14-lead TSSOP, 8-lead SOIC
CC
detection and reset assertion
CC
reset threshold voltage
CC
= 1V
DESCRIPTION
These devices combine three popular functions, Power-
on Reset Control, Supply Voltage Supervision, and
Block Lock Protect Serial EEPROM Memory in one
package. This combination lowers system cost, reduces
board space requirements, and increases reliability.
Applying power to the device activates the power on
reset circuit which holds RESET/RESET active for a
period of time. This allows the power supply and oscilla-
tor to stabilize before the processor can execute code.
The device’s low V
user’s system from low voltage conditions by holding
RESET/RESET active when V
mum V
CC
trip point. RESET/RESET remains asserted
until V
CC
returns to proper operating level and stabi-
lizes. Five industry standard V
available, however, Xicor’s unique circuits allow the
threshold to be reprogrammed to meet custom
requirements or to fine-tune the threshold in applica-
tions requiring higher precision.
CC
detection circuitry protects the
CC
falls below a mini-
TRIP
thresholds are
BLOCK DIAGRAM
Data
Register
Command
Decode &
Control
Logic
SI
SO
SCK
CS
V
CC
Reset
Timebase
Power on and
Low Voltage
Generation
V
TRIP
+
-
RESET/RESET
Reset
Status
Register
Protect Logic
8Kbits
8Kbits
16Kbits
E
WP
X5328 = RESET
X5329 = RESET
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