CYDM256A16 Datasheet, PDF (1/25 Pages) Cypress Semiconductor – 1.8V 4K/8K/16K x 16 and 8K/16K x 8 MoBL® Dual-Port Static RAM

CYDM256A16, CYDM128A16,
CYDM064A16, CYDM128A08,
CYDM064A08
1.8V 4K/8K/16K x 16 and 8K/16K x 8
MoBL^® Dual-Port Static RAM
Features
• True dual-ported memory cells which allow simulta-
neous access of the same memory location
• 4/8/16K × 16 and 8/16K x 8 organization
• High-speed access: 35 ns
• Ultra Low operating power
— Active: I_CC = 15 mA (typical) at 55 ns
— Active: I_CC = 25 mA (typical) at 35 ns
— Standby: I_SB3 = 2 µA (typical)
• Small footprint: Available in a 6x6 mm 100-pin
Lead(Pb)-free fBGA
• Supports 1.8V, 2.5V, and 3.0V I/Os
• Full asynchronous operation
• Automatic power-down
• Pin select for Master or Slave
• Expandable data bus to 32 bits with Master/Slave chip
select when using more than one device
• On-chip arbitration logic
• Semaphores included to permit software handshaking
between ports
• Input Read Registers and Output Drive Registers
• INT flag for port-to-port communication
• Separate upper-byte and lower-byte control
• Industrial temperature ranges
Selection Guide for 1.8V
Maximum Access Time
Typical Operating Current
Typical Standby Current for I_SB1
Typical Standby Current for I_SB3
CYDM256A16, CYDM128A16, CYDM256A16, CYDM128A16,
CYDM064A16, CYDM128A08, CYDM064A16, CYDM128A08,
CYDM064A08
CYDM064A08
-35
-55
Unit
35
55
ns
25
15
mA
2
2
µA
2
2
µA
Selection Guide for 2.5V
Maximum Access Time
Typical Operating Current
Typical Standby Current for I_SB1
Typical Standby Current for I_SB3
Selection Guide for 3.0V
Maximum Access Time
Typical Operating Current
Typical Standby Current for I_SB1
Typical Standby Current for I_SB3
CYDM256A16, CYDM128A16, CYDM256A16, CYDM128A16,
CYDM064A16, CYDM128A08, CYDM064A16, CYDM128A08,
CYDM064A08
CYDM064A08
-35
-55
Unit
35
55
ns
39
28
mA
6
6
µA
4
4
µA
CYDM256A16, CYDM128A16, CYDM256A16, CYDM128A16,
CYDM064A16, CYDM128A08, CYDM064A16, CYDM128A08,
CYDM064A08
CYDM064A08
-35
-55
Unit
35
55
ns
49
42
mA
7
7
µA
6
6
µA
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document #: 38-06081 Rev. *F
Revised October 31, 2005