U631H256 데이터 시트보기 (PDF) - Simtek Corporation
부품명
상세내역
일치하는 목록
U631H256 Datasheet PDF : 13 Pages
| |||
Nonvolatile Memory Operations
No.
STORE Cycle Inhibit and
Automatic Power Up RECALL
24 Power Up RECALL Durationk
Low Voltage Trigger Level
k: tRESTORE starts from the time VCC rises above VSWITCH.
Symbol
Alt.
tRESTORE
VSWITCH
IEC
STORE Cycle Inhibit and Automatic Power Up RECALL
VCC
5.0 V
VSWITCH
U631H256
Min.
Max.
Unit
650
μs
4.0
4.5
V
Power Up
RECALL
Software Mode Selection
(24)
tRESTORE
t
STORE inhibit
E
W
A13 - A0
(hex)
Mode
I/O
Power
Notes
L
H
L
H
0E38
31C7
03E0
3C1F
303F
0FC0
0E38
31C7
03E0
3C1F
303F
0C63
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile STORE
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile RECALL
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Active
l, m
l, m
l, m
l, m
l, m
ICC2
l, m
Active
l, m
l, m
l, m
l, m
l, m
l, m
l: The six consecutive addresses must be in order listed. W must be high during all six consecutive cycles. See STORE cycle and RECALL
cycle tables and diagrams for further details.
The following six-address sequence is used for testing purposes and should not be used: 0E38, 31C7, 03E0, 3C1F, 303F, 339C.
m: While there are 15 addresses on the U631H256, only the lower 14 are used to control software modes.
August 15, 2006
STK Control #ML0043
7
Rev 1.1
Share Link: 