參數(shù)資料
型號： S71PL191HB0BFI100
廠商： SPANSION LLC
元件分類： 存儲器
英文描述： SPECIALTY MEMORY CIRCUIT, PBGA73
封裝： 9 X 13 MM, LEAD FREE, FBGA-73
文件頁數(shù)： 6/172頁
文件大?。?/td> 4662K
代理商： S71PL191HB0BFI100
May 7, 2004 S29JL064HA1
S29JL064H
7
Pre l i m i n a r y
Device Bus Operations
This section describes the requirements and use of the device bus operations,
which are initiated through the internal command register. The command register
itself does not occupy any addressable memory location. The register is a latch
used to store the commands, along with the address and data information
needed to execute the command. The contents of the register serve as inputs to
the internal state machine. The state machine outputs dictate the function of the
device. Table 1 lists the device bus operations, the inputs and control levels they
require, and the resulting output. The following subsections describe each of
these operations in further detail.
Table 1. S29JL064H Device Bus Operations
Legend: L = Logic Low = VIL, H = Logic High = VIH, VID = 11.5–12.5 V, VHH = 9.0 ± 0.5 V, X = Don’t Care, SA = Sector
Address, AIN = Address In, DIN = Data In, DOUT = Data Out
Notes:
1. Addresses are A21:A0 in word mode (BYTE# = VIH), A21:A-1 in byte mode (BYTE# = VIL).
2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See
3. If WP#/ACC = VIL, sectors 0, 1, 140, and 141 remain protected. If WP#/ACC = VIH, protection on sectors 0, 1, 140,
and 141 depends on whether they were last protected or unprotected using the method described in “Sector/Sector
Block Protection and Unprotection”. If WP#/ACC = VHH, all sectors will be unprotected.
Operation
CE#
OE# WE# RESET# WP#/ACC
Addresses
DQ15–DQ8
DQ7–
DQ0
BYTE#
= VIH
BYTE#
= VIL
Read
L
H
L/H
AIN
DOUT
DQ14–DQ8 = High-
Z, DQ15 = A-1
DOUT
Write
L
H
L
H
AIN
DIN
Standby
VCC ±
0.3 V
X
VCC ±
0.3 V
L/H
X
High-Z
Output Disable
L
H
L/H
X
High-Z
Reset
X
L
L/H
X
High-Z
Sector Protect (Note 2)
L
H
L
VID
L/H
SA, A6 = L,
A1 = H, A0 = L
X
DIN
Sector Unprotect (Note 2)
L
H
L
VID
SA, A6 = H,
A1 = H, A0 = L
X
DIN
Temporary Sector
Unprotect
X
VID
AIN
DIN
High-Z
DIN
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