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Cypress Semiconductor Electronic Components Datasheet

CY7C199N Datasheet

32K x 8 Static RAM

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32K × 8 Static RAM
Features
High speed
15 ns
Fast tDOE
CMOS for optimum speed/power
Low active power
550 mW (max, 15 ns “L” version)
Low standby power
0.275 mW (max, “L” version)
2 V data retention (“L” version only)
Easy memory expansion with CE and OE features
TTL-compatible inputs and outputs
Automatic power-down when deselected
Logic Block Diagram
CY7C199N
32K × 8 Static RAM
Functional Description
The CY7C199N is a high-performance CMOS static RAM
organized as 32,768 words by 8 bits. Easy memory expansion is
provided by an active LOW Chip Enable (CE) and active LOW
Output Enable (OE) and three-state drivers. This device has an
automatic power-down feature, reducing the power consumption
by 81% when deselected. The CY7C199N is available in 28-pin
TSOP I package.
An active LOW Write Enable signal (WE) controls the
writing/reading operation of the memory. When CE and WE
inputs are both LOW, data on the eight data input/output pins
(I/O0 through I/O7) is written into the memory location addressed
by the address present on the address pins (A0 through A14).
Reading the device is accomplished by selecting the device and
enabling the outputs, CE and OE active LOW, while WE remains
inactive or HIGH. Under these conditions, the contents of the
location addressed by the information on address pins are
present on the eight data input/output pins.
The input/output pins remain in a high-impedance state unless
the chip is selected, outputs are enabled, and Write Enable (WE)
is HIGH. A die coat is used to improve alpha immunity.
For a complete list of related documentation, click here.
AAAAAAAAAA1234567890
CE
WE
OE
INPUT BUFFER
1024 x 32 x 8
ARRAY
COLUMN
DECODER
POWER
DOWN
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-06493 Rev. *H
• San Jose, CA 95134-1709 • 408-943-2600
Revised March 19, 2018


Cypress Semiconductor Electronic Components Datasheet

CY7C199N Datasheet

32K x 8 Static RAM

No Preview Available !

CY7C199N
Contents
Pin Configuration ............................................................. 3
Selection Guide ................................................................ 3
Maximum Ratings ............................................................. 4
Operating Range ............................................................... 4
Electrical Characteristics ................................................. 4
Capacitance ...................................................................... 5
AC Test Loads and Waveforms ....................................... 5
Data Retention Characteristics ....................................... 5
Data Retention Waveform ................................................ 5
Switching Characteristics ................................................ 6
Switching Waveforms ...................................................... 7
Typical DC and AC Characteristics ................................ 9
Truth Table ...................................................................... 10
Ordering Information ...................................................... 10
Ordering Code Definitions ......................................... 10
Package Diagrams .......................................................... 11
Acronyms ........................................................................ 12
Document Conventions ................................................. 12
Units of Measure ....................................................... 12
Document History Page ................................................. 13
Sales, Solutions, and Legal Information ...................... 14
Worldwide Sales and Design Support ....................... 14
Products .................................................................... 14
PSoC® Solutions ...................................................... 14
Cypress Developer Community ................................. 14
Technical Support ..................................................... 14
Document Number: 001-06493 Rev. *H
Page 2 of 14


Part Number CY7C199N
Description 32K x 8 Static RAM
Maker Cypress Semiconductor
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CY7C199N Datasheet PDF






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