CY7C1019CV33 Datasheet, PDF (1/8 Pages) Cypress Semiconductor – 128K x 8 Static RAM

CY7C1019CV33
128K x 8 Static RAM
Features
• Pin and function compatible with CY7C1019BV33
• High speed
— t_AA = 8, 10, 12, 15 ns
• CMOS for optimum speed/power
• Data retention at 2.0V
• Center power/ground pinout
• Automatic power-down when deselected
• Easy memory expansion with CE and OE options
• Available in 32-pin TSOP II and 400-mil SOJ package
Functional Description
The CY7C1019CV33 is a high-performance CMOS static
RAM organized as 131,072 words by 8 bits. Easy memory
expansion is provided by an active LOW Chip Enable (CE), an
active LOW Output Enable (OE), and three-state drivers. This
Logic Block Diagram
device has an automatic power-down feature that significantly
reduces power consumption when deselected.
Writing to the device is accomplished by taking Chip Enable
(CE) and Write Enable (WE) inputs LOW. Data on the eight I/O
pins (I/O₀ through I/O₇) is then written into the location
specified on the address pins (A₀ through A₁₆).
Reading from the device is accomplished by taking Chip
Enable (CE) and Output Enable (OE) LOW while forcing Write
Enable (WE) HIGH. Under these conditions, the contents of
the memory location specified by the address pins will appear
on the I/O pins.
The eight input/output pins (I/O₀ through I/O₇) are placed in a
high-impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), or during a write
operation (CE LOW, and WE LOW).
The CY7C1019CV33 is available in a standard 32-pin TSOP
II and 400-mil-wide SOJ.
Pin Configuration
A₀
A₁
A₂
A₃
A₄
A₅
A₆
A₇
A₈
CE
WE
OE
INPUT BUFFER
512 x 256 x 8
ARRAY
COLUMN
DECODER
POWER
DOWN
SOJ/TSOP II
Top View
A_{0 1}
32 A₁₆
A_{1 2}
31 A₁₅
A_{2 3}
30 _A14
I/O₀
A_{3 4}
29 A₁₃
I/O₁
CE 5
I/O₀ 6
28 _OE
27 _I/O7
I/O₂
I/O₁ 7
V_{CC 8}
26 _I/O6
25 _VSS
I/O₃
V_{SS 9}
24 _VCC
I/O_{2 10}
23 I/O₅
I/O₄
I/O_{3 11}
22 I/O₄
WE 12
21 ^A12
I/O
5
A_{4 13}
20 ^A11
I/O₆
A_{5 14}
A_{6 15}
19 ^A10
18 ^A9
I/O₇
A₇ 16
17 A₈
Selection Guide
Maximum Access Time
Maximum Operating Current
Maximum Standby Current
7C1019CV33-8
8
85
5
7C1019CV33-10 7C1019CV33-12 7C1019CV33-15 Unit
10
12
15
ns
80
75
70
mA
5
5
5
mA
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 38-05130 Rev. *D
Revised December 16, 2002