EtronTech
Features
• Single power supply voltage of 2.7V to 3.6V • Power down features using CE1# and CE2 • Low operating current : 25mA(max. for 70 ns) • Maximum Standby current : 10µA at 3.6 V • Data retention supply voltage: 1.5V to 3.6V • Direct TTL compatibility for all input and output • Wide operating temperature range: -40°C to 85°C • Package type: 36-ball TFBGA, 6x8mm
EM562081
256K x 8 Low Power SRAM
Preliminary, Rev 1.0 7/2001
asserted low. There are three control inputs. CE1# and CE.
256K x 8 Low Power SRAM
EtronTech
Features
• Single power supply voltage of 2.7V to 3.6V • Power down features using CE1# and CE2 • Low operating current : 25mA(max. for 70 ns) • Maximum Standby current : 10µA at 3.6 V • Data retention supply voltage: 1.5V to 3.6V • Direct TTL compatibility for all input and output • Wide operating temperature range: -40°C to 85°C • Package type: 36-ball TFBGA, 6x8mm
EM562081
256K x 8 Low Power SRAM
Preliminary, Rev 1.0 7/2001
asserted low. There are three control inputs. CE1# and CE2 are used to select the device and for data retention control, and output enable (OE#) provides fast memory access. Data byte control pin (LB#,UB#) provides lower and upper byte access. This device is well suited to various microprocessor system applications where high speed, low power and battery backup are required. And, with a guaranteed operating range from -40°C to 85°C, the EM562081 can be used in environments exhibiting extreme temperature conditions.
Pin Assignment Ordering Information
Part Number
EM562081BC-70 EM562081BC-85
Speed
70 ns 85 ns
IDDS2
10 µA 10 µA
Package
6x8 BGA 6x8 BGA
1. 36-Ball BGA (CSP), Top View
1 2 3 4 5 6
A
A0
A1
CE 2
A3
A6
A8
Pin Names
Symbol
A0 - A17 DQ0-DQ7 CE1#,CE2 OE# WE# GND VDD NC
B
DQ 4
A2
WE#
A4
A7
DQ 0
Function
Address Inputs Data Inputs/Outputs Chip Enable Inputs Output Enable Read/Write Control Input Ground
C
DQ 5
NC
A5
DQ 1
D
G ND
V DD
E
V DD
G ND
F
DQ 6
NC
A1 7
DQ 2
G
DQ 7
O E#
C E 1#
A16
A15
DQ 3
.