Cypress CYDC064B08 用户手册
1.8V 4k/8k/16k x 16 and 8k/16k x 8
ConsuMoBL Dual-Port Static RAM
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B16, CYDC128B08,
CYDC064B08
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Document #: 001-01638 Rev. *E
Revised January 25, 2007
Features
• True dual-ported memory cells which allow simulta-
neous access of the same memory location
• 4/8/16k × 16 and 8/16k × 8 organization
• High-speed access: 40 ns
• Ultra Low operating power
• High-speed access: 40 ns
• Ultra Low operating power
— Active: I
CC
= 15 mA (typical) at 55 ns
— Active: I
CC
= 25 mA (typical) at 40 ns
— Standby: I
SB3
= 2
µA (typical)
• Port-independent 1.8V, 2.5V, and 3.0V I/Os
• Lead (Pb)-free 14 x 14 x 1.4 mm 100-pin TQFP Package
• Full asynchronous operation
• Pin select for Master or Slave
• Expandable data bus to 32 bits with Master/Slave chip
• Full asynchronous operation
• 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
• On-chip semaphore logic
• Input Read Registers and Output Drive Registers
• INT flag for port-to-port communication
• Separate upper-byte and lower-byte control
• Commercial and industrial temperature ranges
• On-chip semaphore logic
• Input Read Registers and Output Drive Registers
• INT flag for port-to-port communication
• Separate upper-byte and lower-byte control
• Commercial and industrial temperature ranges
Selection Guide for V
CC
= 1.8V
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-40
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-55
Unit
Port I/O Voltages (P1-P2)
1.8V-1.8V
1.8V-1.8V
Maximum Access Time
40
55
ns
Typical Operating Current
25
15
mA
Typical Standby Current for I
SB1
2
2
µA
Typical Standby Current for I
SB3
2
2
µA
Selection Guide for V
CC
= 2.5V
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-40
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-55
Unit
Port I/O Voltages (P1-P2)
2.5V-2.5V
2.5V-2.5V
Maximum Access Time
40
55
ns
Typical Operating Current
39
28
mA
Typical Standby Current for I
SB1
6
6
µA
Typical Standby Current for I
SB3
4
4
µA
Selection Guide for V
CC
= 3.0V
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-40
CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
-55
Unit
Port I/O Voltages (P1-P2)
3.0V-3.0V
3.0V-3.0V
Maximum Access Time
40
55
ns
Typical Operating Current
49
42
mA
Typical Standby Current for I
SB1
7
7
µA
Typical Standby Current for I
SB3
6
6
µA