參數(shù)資料
型號(hào): HN58C256AI
廠商: Hitachi,Ltd.
英文描述: 32768-word ×8-bit Electrically Erasable and Programmable CMOS ROM(256k EEPROM (32k字 ×8位))
中文描述: 32768字× 8位電可擦除和可編程的CMOS光盤(256k的EEPROM(32K的字× 8位))
文件頁數(shù): 6/19頁
文件大?。?/td> 141K
代理商: HN58C256AI
HN58C256AI Series
6
Write Cycle
Parameter
Symbol
Min*
2
Typ
Max
Unit
Test conditions
Address setup time
t
AS
t
AH
t
CS
t
CH
t
WS
t
WH
t
OES
t
OEH
t
DS
t
DH
t
WP
t
CW
t
DL
t
BLC
t
BL
t
WC
t
DB
t
DW
0
ns
Address hold time
CE
to write setup time (
WE
controlled)
CE
hold time (
WE
controlled)
WE
to write setup time (
CE
controlled)
WE
hold time (
CE
controlled)
OE
to write setup time
OE
hold time
50
ns
0
ns
0
ns
0
ns
0
ns
0
ns
0
ns
Data setup time
50
ns
Data hold time
WE
pulse width (
WE
controlled)
CE
pulse width (
CE
controlled)
0
ns
100
ns
100
ns
Data latch time
50
ns
Byte load cycle
0.2
30
μ
s
μ
s
Byte load window
100
Write cycle time
10*
3
ms
Time to device busy
120
ns
Write start time
Notes: 1. t
is defined as the time at which the outputs achieve the open circuit conditions and are no
longer driven.
2. Use this device in longer cycle than this value.
3. t
must be longer than this value unless polling techniques is used. This device automatically
completes the internal write operation within this value.
4. Next read or write operation can be initiated after t
DW
if polling techniques is used.
5. A6 through A14 are page addresses and these addresses are latched at the first falling edge of
WE
.
6. A6 through A14 are page addresses and these addresses are latched at the first falling edge of
CE
.
7. See AC read characteristics.
0*
4
ns
相關(guān)PDF資料
PDF描述
HN58C256AP-10 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A)
HN58C257AT-10 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A)
HN58C256A 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A)
HN58C256AFP-10 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A)
HN58C256AFP-85 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58C257A)
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