CY7C1061DV33_07 Datasheet, PDF (1/11 Pages) Cypress Semiconductor – 16-Mbit (1M x 16) Static RAM

CY7C1061DV33
16-Mbit (1M x 16) Static RAM
Features
■ High speed
❐ t_AA = 10 ns
■ Low active power
❐ I_CC = 175 mA at 10 ns
■ Low CMOS standby power
❐ I_SB2 = 25 mA
■ Operating voltages of 3.3 ± 0.3V
■ 2.0V data retention
■ Automatic power down when deselected
■ TTL compatible inputs and outputs
■ Easy memory expansion with CE₁ and CE₂ features
■ Available in Pb-free 54-Pin TSOP II and 48-Ball VFBGA
packages
Functional Description
The CY7C1061DV33 is a high performance CMOS Static RAM
organized as 1,048,576 words by 16 bits.
To write to the device, take Chip Enables (CE₁ LOW and CE₂
HIGH) and Write Enable (WE) input LOW. If Byte Low Enable
(BLE) is LOW, then data from IO pins (IO₀ through IO₇), is written
into the location specified on the address pins (A₀ through A₁₉).
If Byte High Enable (BHE) is LOW, then data from IO pins (IO₈
through IO₁₅) is written into the location specified on the address
pins (A₀ through A₁₉).
To read from the device, take Chip Enables (CE₁ LOW and CE₂
HIGH) and Output Enable (OE) LOW while forcing the Write
Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then data
from the memory location specified by the address pins appears
on IO₀ to IO₇. If Byte High Enable (BHE) is LOW, then data from
memory appears on IO₈ to IO₁₅. See the Truth Table on page 9
for a complete description of Read and Write modes.
The input or output pins (IO₀ through IO₁₅) are placed in a high
impedance state when the device is deselected (CE₁ HIGH/CE₂
LOW), the outputs are disabled (OE HIGH), the BHE and BLE
are disabled (BHE, BLE HIGH), or during a write operation (CE₁
LOW, CE₂ HIGH, and WE LOW).
The CY7C1061DV33 is available in a 54-Pin TSOP II package
with center power and ground (revolutionary) pinout, and a
48-Ball VFBGA package.
Logic Block Diagram
A₀
A₁
A₂
A₃
A₄
A₅
A₆
A₇
A₈
A₉
INPUT BUFFER
1M x 16
ARRAY
COLUMN
DECODER
IO₀ – IO₇
IO₈ – IO₁₅
BHE
WE
CE₂
OE
CE₁
BLE
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 38-05476 Rev. *D
• San Jose, CA 95134-1709 • 408-943-2600
Revised September 06, 2007