Datasheet > 存储 > SRAM> AS7C33256PFS32A-166TQIN

AS7C33256PFS32A-166TQIN

更新时间： 2024-02-06 19:44:35

品牌	Logo	应用领域
ALSC		存储内存集成电路静态存储器
页数	文件大小	规格书
20页	528K
描述
3.3V 256K x 32/36 pipelined burst synchronous SRAM

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技术参数
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AS7C33256PFS32A-166TQIN 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	LQFP,
针数：	100	Reach Compliance Code：	compliant
ECCN代码：	3A991.B.2.A	HTS代码：	8542.32.00.41
风险等级：	5.35	最长访问时间：	9 ns
其他特性：	FLOW-THROUGH OR PIPELINED ARCHITECTURE	JESD-30 代码：	R-PQFP-G100
JESD-609代码：	e3	长度：	20 mm
内存密度：	8388608 bit	内存集成电路类型：	STANDARD SRAM
内存宽度：	32	功能数量：	1
端子数量：	100	字数：	262144 words
字数代码：	256000	工作模式：	SYNCHRONOUS
最高工作温度：	85 °C	最低工作温度：	-40 °C
组织：	256KX32	封装主体材料：	PLASTIC/EPOXY
封装代码：	LQFP	封装形状：	RECTANGULAR
封装形式：	FLATPACK, LOW PROFILE	并行/串行：	PARALLEL
峰值回流温度（摄氏度）：	245	认证状态：	Not Qualified
座面最大高度：	1.6 mm	最大供电电压 (Vsup)：	3.465 V
最小供电电压 (Vsup)：	3.135 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
宽度：	14 mm	Base Number Matches：	1

AS7C33256PFS32A-166TQIN 数据手册

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AS7C33256PFS32A

AS7C33256PFS36A

Signal descriptions

Signal

I/O Properties Description

CLK

CLOCK

SYNC

Clock. All inputs except OE, ZZ, LBO are synchronous to this clock.

Address. Sampled when all chip enables are active and ADSC or ADSP are asserted.

Data. Driven as output when the chip is enabled and OE is active.

A, A0, A1

DQ[a,b,c,d] I/O

Master chip enable. Sampled on clock edges when ADSP or ADSC is active. When CE0

is inactive, ADSP is blocked. Refer to the Synchronous Truth Table for more

information.

CE0

SYNC

Synchronous chip enables. Active HIGH and active LOW, respectively. Sampled on

clock edges when ADSC is active or when CE0 and ADSP are active.

CE1, CE2

ADSP

SYNC

Address strobe processor. Asserted LOW to load a new bus address or to enter standby

mode.

Address strobe controller. Asserted LOW to load a new address or to enter standby

mode.

ADSC

ADV

GWE

SYNC

Advance. Asserted LOW to continue burst read/write.

Global write enable. Asserted LOW to write all 32/36 bits. When HIGH, BWE and

BW[a:d] control write enable.

Byte write enable. Asserted LOW with GWE = HIGH to enable effect of BW[a:d]

inputs.

BWE

SYNC

Write enables. Used to control write of individual bytes when GWE = HIGH and BWE =

LOW. If any of BW[a:d] is active with GWE = HIGH and BWE = LOW the cycle is a

write cycle. If all BW[a:d] are inactive the cycle is a read cycle.

BW[a,b,c,d] I

Asynchronous output enable. I/O pins are driven when OE is active and the chip is in

read mode.

ASYNC

STATIC

Selects Burst mode. When tied to V or left floating, device follows Interleaved Burst

LBO

order. When driven Low, device follows linear Burst order. This signal is internally

pulled High.

ASYNC

Snooze. Places device in LOW power mode; data is retained. Connect to GND if unused.

No connect

Snooze Mode

SNOOZE MODE is a low current, power-down mode in which the device is deselected and current is reduced to I_SB2. The duration of

SNOOZE MODE is dictated by the length of time the ZZ is in a High state.

The ZZ pin is an asynchronous, active high input that causes the device to enter SNOOZE MODE.

When the ZZ pin becomes a logic High, I_SB2is guaranteed after the time t_ZZIis met. After entering SNOOZE MODE, all inputs except ZZ

is disabled and all outputs go to High-Z. Any operation pending when entering SNOOZE MODE is not guaranteed to successfully complete.

Therefore, SNOOZE MODE (READ or WRITE) must not be initiated until valid pending operations are completed. Similarly, when exiting

SNOOZE MODE during t_PUS, only a DESELECT or READ cycle should be given while the SRAM is transitioning out of SNOOZE MODE.

11/30/04, v.3.1

Alliance Semiconductor

P. 5 of 20

1 2 3 456 7 8...20

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与AS7C33256PFS32A-166TQIN相关器件

型号	品牌	描述	获取价格	数据表
AS7C33256PFS32A2-100BC	ISSI	SRAM	获取价格
AS7C33256PFS32A2-100TQC	ISSI	Standard SRAM, 256KX32, 12ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100	获取价格
AS7C33256PFS32A2-100TQI	ISSI	Standard SRAM, 256KX32, 12ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100	获取价格
AS7C33256PFS32A2-133BC	ISSI	SRAM	获取价格
AS7C33256PFS32A2-133BI	ISSI	SRAM	获取价格
AS7C33256PFS32A2-133TQC	ISSI	Standard SRAM, 256KX32, 10ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100	获取价格

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