- 您现在的位置：买卖IC网 > PDF目录375291 > AM29DL320GT70WDI (SPANSION LLC) For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. PDF资料下载
参数资料
| 型号： | AM29DL320GT70WDI |
| 厂商： | SPANSION LLC |
| 元件分类： | DRAM |
| 英文描述： | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
| 中文描述： | 2M X 16 FLASH 3V PROM, 70 ns, PBGA63 |
| 封装： | 8 X 14 MM, 0.80 MM PITCH, FBGA-63 |
| 文件页数： | 11/58页 |
| 文件大小： | 1239K |
| 代理商： | AM29DL320GT70WDI |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页
September 27, 2004
Am29DL320G
9
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 loca-
tion. The register is a latch used to store the com-
mands, 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 in-
puts and control levels they require, and the resulting
output. The following subsections describe each of
these operations in further detail.
Table 1.
Device Bus Operations
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, V
ID
= 8.5–12.5 V, V
HH
= 9.0 ± 0.5 V, X = Don’t Care, SA = Sector Address,
A
IN
= Address In, D
IN
= Data In, D
OUT
= Data Out
Notes:
1. Addresses are A20:A0 in word mode (BYTE# = V
IH
), A20:A-1 in byte mode (BYTE# = V
IL
).
2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the “Sector/Sector
Block Protection and Unprotection” section.
3. If WP#/ACC = V
IL
, the two outermost boot sectors remain protected. If WP#/ACC = V
IH
, the two outermost boot sector
protection depends on whether they were last protected or unprotected using the method described in “Sector/Sector Block
Protection and Unprotection”. If WP#/ACC = V
HH
, all sectors will be unprotected.
Word/Byte Configuration
The BYTE# pin controls whether the device data I/O
pins operate in the byte or word configuration. If the
BYTE# pin is set at logic ‘1’, the device is in word con-
figuration, DQ15–DQ0 are active and controlled by
CE# and OE#.
If the BYTE# pin is set at logic ‘0’, the device is in byte
configuration, and only data I/O pins DQ7–DQ0 are
active and controlled by CE# and OE#. The data I/O
pins DQ8–DQ14 are tri-stated, and the DQ15 pin is
used as an input for the LSB (A-1) address function.
Requirements for Reading Array Data
To read array data from the outputs, the system must
drive the CE# and OE# pins to V
IL
. CE# is the power
control and selects the device. OE# is the output con-
trol and gates array data to the output pins. WE#
should remain at V
IH
. The BYTE# pin determines
whether the device outputs array data in words or
bytes.
The internal state machine is set for reading array data
upon device power-up, or after a hardware reset. This
ensures that no spurious alteration of the memory
content occurs during the power transition. No com-
mand is necessary in this mode to obtain array data.
Standard microprocessor read cycles that assert valid
Operation
CE#
OE#
WE#
RESET#
WP#/ACC
Addresses
(Note 2)
DQ15–DQ8
DQ7–
DQ0
BYTE#
= V
IH
BYTE#
= V
IL
Read
L
L
H
H
L/H
A
IN
D
OUT
DQ8–DQ14 =
High-Z, DQ15 = A-1
D
OUT
Write
L
H
L
H
(Note 3)
A
IN
D
IN
D
IN
Standby
V
CC
±
0.3 V
X
X
V
CC
±
0.3 V
H
X
High-Z
High-Z
High-Z
Output Disable
L
H
H
H
L/H
X
High-Z
High-Z
High-Z
Reset
X
X
X
L
L/H
X
High-Z
High-Z
High-Z
Sector Protect (Note 2)
L
H
L
V
ID
L/H
SA, A6 = L,
A1 = H, A0 = L
X
X
D
IN
Sector Unprotect (Note 2)
L
H
L
V
ID
(Note 3)
SA, A6 = H,
A1 = H, A0 = L
X
X
D
IN
Temporary Sector
Unprotect
X
X
X
V
ID
(Note 3)
A
IN
D
IN
High-Z
D
IN
相关PDF资料 |
PDF描述 |
|---|---|
| AM29DL320GB70WDI | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
| AM29DL320GT70WDIN | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
| AM29DL320GB70WDIN | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
| AM29DL320GB70EI | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
| AM29DL320GB70EIN | For new designs involving TSOP packages, S29JL032H supercedes Am29DL320G and is the factory-recommended migration path. |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AM29DL322DB7REIT | 制造商:AMD 功能描述:New |
| AM29DL322DB-90WDIT | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 32MBIT 4MX8/2MX16 90NS 63FBGA - Tape and Reel |
| AM29DL322DT-90EI-T | 制造商:Advanced Micro Devices 功能描述: |
| AM29DL322GB-90EI | 制造商:Advanced Micro Devices 功能描述:2M X 16 FLASH 3V PROM, 90 ns, 48 Pin Plastic SMT |
| AM29DL322GT-90EI | 制造商:Advanced Micro Devices 功能描述:Flash Mem Parallel 3.3V 32M-Bit 4M x 8/2M x 16 90ns 48-Pin TSOP |
发布紧急采购，3分钟左右您将得到回复。