參數(shù)資料
型號: AM42BDS640AGTD9IS
廠商: SPANSION LLC
元件分類: 存儲器
英文描述: LJT 13C 13#22D SKT WALL RECP
中文描述: SPECIALTY MEMORY CIRCUIT, PBGA93
封裝: 8 X 11.60 MM, FBGA-93
文件頁數(shù): 54/72頁
文件大?。?/td> 1060K
代理商: AM42BDS640AGTD9IS
November 1, 2002
Am42BDS640AG
53
P R E L I M I N A R Y
AC CHARACTERISTICS
Notes:
1. PA = Program Address, PD = Program Data, VA = Valid
Address for reading status bits.
2. “In progress” and “complete” refer to status of program
operation.
3. A21–A12 are don’t care during command sequence
unlock cycles.
4. Addresses are latched on the first of either the rising edge
of AVD# or the active edge of CLK.
5. Either CS# or AVD# is required to go from low to high in
between programming command sequences.
6. The Synchronous programming operation is independent
of the Set Device Read Mode bit in the Burst Mode
Configuration Register.
7. CLK must not have an active edge while WE# is at V
IL
.
8. AVD# must toggle during command sequence unlock cy-
cles.
Figure 23.
Synchronous Program Operation Timings
OE#
CE#f
Data
Addresses
AVD#
WE#
CLK
V
CC
555h
PD
t
AS
t
WP
t
AH
t
WC
t
WPH
PA
t
VCS
t
DH
t
CH
In
Progress
t
WHWH1
VA
Complete
VA
Program Command Sequence (last two cycles)
Read Status Data
t
DS
t
AVDP
A0h
t
AHW
t
ACS
t
CAS
t
ACH
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