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CAT130049JWI-GT3 Datasheet(Hoja de datos) 9 Page - Catalyst Semiconductor

No. de Pieza. CAT130049JWI-GT3
Descripción  Voltage Supervisor with Microwire Serial CMOS EEPROM
Descarga  14 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT130xx
© 2007 Catalyst Semiconductor, Inc.
9
Doc. No. 1121 Rev. A
Characteristics subject to change without notice
Erase
Upon receiving an ERASE command and address,
the CS (Chip Select) pin must be deasserted for a
minimum of tCSMIN (Figure 7). The falling edge of CS
will start the self clocking clear cycle of the selected
memory location. The clocking of the SK pin is not
necessary after the device has entered the self
clocking mode. The ready/busy status of the
CAT130xx can be determined by selecting the device
and polling the DO pin. Once cleared, the content of a
cleared location returns to a logical “1” state.
Erase All
Upon receiving an ERAL command (Figure 8), the CS
(Chip Select) pin must be deselected for a minimum of
tCSMIN. The falling edge of CS will start the self clocking
clear cycle of all memory locations in the device. The
clocking of the SK pin is not necessary after the
device has entered the self clocking mode. The
ready/busy status of the CAT130xx can be determi–
ned by selecting the device and polling the DO pin.
Once cleared, the contents of all memory bits return to
a logical “1” state.
Figure 7. Erase Instruction Timing
Figure 8. ERAL Instruction Timing
SK
CS
DI
DO
STANDBY
HIGH-Z
HIGH-Z
1
AN
AN-1
BUSY
READY
STATUS VERIFY
tSV
tHZ
tEW
tCS
11
A0
SK
CS
DI
DO
STANDBY
tCS
HIGH-Z
HIGH-Z
10
1
BUSY
READY
STATUS VERIFY
tSV
tHZ
tEW
00




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