Datasheet > 7C187-35

7C187-35

更新时间： 2022-11-27 18:13:14

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
9页	145K
描述
64K x 1 Static RAM

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

7C187-35 数据手册

CY7C187

AC Test Loads and Waveforms

R1 329 Ω

(480Ω MIL)

(480 Ω MIL)

OUTPUT

R2 202 Ω

(R1 255Ω MIL)

ALL INPUT PULSES

90%

3.0V

GND

90%

10%

R2 202 Ω

(R1 255 Ω MIL)

30 pF

5 pF

10%

≤ 5 ns

INCLUDING

JIG AND

SCOPE

INCLUDING

JIG AND

SCOPE

≤ 5 ns

C187–4

C187–5

(a)

(b)

Equivalent to:

THÉVENIN EQUIVALENT

167Ω

OUTPUT

125Ω

1.73V

OUTPUT

1.90V

Military

Commercial

Switching Characteristics Over the Operating Range^[6]

7C187-15

7C187-20

Parameter

Description

Min.

Max.

Min.

Max.

Unit

READ CYCLE

t_RC

Read Cycle Time

t_AA

Address to Data Valid

t_OHA

Output Hold from Address Change

CE LOW to Data Valid

CE LOW to Low Z^[7]

t_ACE

t_LZCE

t_HZCE

CE HIGH to High Z^{[7, 8]}

t_PU

CE LOW to Power Up

t_PD

CE HIGH to Power Down

WRITE CYCLE^[9]

t_WC

t_SCE

t_AW

t_HA

Write Cycle Time

CE LOW to Write End

Address Set-Up to Write End

Address Hold from Write End

Address Set-Up to Write Start

WE Pulse Width

t_SA

t_PWE

t_SD

Data Set-Up to Write End

Data Hold from Write End

WE HIGH to Low Z

t_HD

t_LZWE

t_HZWE

WE LOW to High Z^[8]

Notes:

6. Test conditions assume signal transition time of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified

I_OL/I_OHand 30-pF load capacitance.

7. At any given temperature and voltage condition, t_HZCEis less than t_LZCEfor any given device.

8. t_HZCEand t_HZWEare specified with C_L= 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage.

9. The internal write time of the memory is defined by the overlap of CE LOW and WE LOW. Both signals must be LOW to initiate a write and either signal can

terminate a write by going HIGH. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write.

Document #: 38-05044 Rev. **

Page 3 of 9

1 234 5 6 7...9

下载PDF

与7C187-35相关器件

型号	品牌	描述	获取价格	数据表
7C192-12	CYPRESS	64K x 4 Static RAM with Separate I/O	获取价格
7C192-15	CYPRESS	64K x 4 Static RAM with Separate I/O	获取价格
7C192-20	CYPRESS	64K x 4 Static RAM with Separate I/O	获取价格
7C192-25	CYPRESS	64K x 4 Static RAM with Separate I/O	获取价格
7C199-10	CYPRESS	32K x 8 Static RAM	获取价格
7C199-12	CYPRESS	32K x 8 Static RAM	获取价格