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EM564161BA-70 Schematic ( PDF Datasheet ) - Etron Technology Inc.

Teilenummer EM564161BA-70
Beschreibung 256K x 16 Low Power SRAM
Hersteller Etron Technology Inc.
Logo Etron Technology  Inc. Logo 




Gesamt 13 Seiten
EM564161BA-70 Datasheet, Funktion
EtronTech
EM564161
256K x 16 Low Power SRAM
Preliminary, Rev 2.6 10/2000
Features
Single power supply voltage of 2.3V to 3.6V
Power down features using CE1# and CE2
Low power dissipation
Data retention supply voltage: 1.0V to 3.6V
Direct TTL compatibility for all input and output
Wide operating temperature range: -40°C to 85°C
Standby current @ VDD = 3.6 V
IDDS2
Typical Maximum
EM564161BA/BC-70/85
1 µA
10 µA
EM564161BA-70E/85E
5 µA
80 µA
Pin Configuration
48-Ball BGA (CSP), Top View
12345
6
A
LB# OE#
A0
A1
A2 CE2
B
DQ8 UB#
A3
A4 CE1# DQ0
C
DQ9 DQ10 A5
A6 DQ1 DQ2
D
GND DQ11 A17 A7
DQ3 VDD
E
VDD DQ12 NC
A16 DQ4 GND
Ordering Information
F DQ14 DQ13 A14 A15 DQ5 DQ6
Part Number
EM564161BC-70
EM564161BA-70
EM564161BA-70E
EM564161BC-85
EM564161BA-85
EM564161BA-85E
Speed
70 ns
70 ns
70 ns
85 ns
85 ns
85 ns
IDDS2
10 µA
10 µA
80 µA
10 µA
10 µA
80 µA
Package
6x8 BGA
8x10 BGA
8x10 BGA
6x8 BGA
8x10 BGA
8x10 BGA
G DQ15 NC A12 A13 WE# DQ7
H NC A8 A9 A10 A11 NC
Pin Description
Symbol
A0 - A17
DQ0 - DQ15
CE1#, CE2
OE#
WE#
LB#, UB#
GND
VDD
NC
Function
Address Inputs
Data Inputs / Outputs
Chip Enable Inputs
Output Enable
Read / Write Control Input
Data Byte Control Inputs
Ground
Power Supply
No Connection
Overview
The EM564161 is a 4,194,304-bit SRAM organized as 262,144 words by 16 bits. It is designed with advanced
CMOS technology. This Device operates from a single 2.3V to 3.6V power supply. Advanced circuit
technology provides both high speed and low power. It is automatically placed in low-power mode when chip
enable (CE1#) is asserted high or (CE2) is 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 EM564161 can be used in environments exhibiting
extreme temperature conditions.
Etron Technology, Inc.
No. 6, Technology Rd. V, Science-Based Industrial Park, Hsinchu, Taiwan 30077, R.O.C.
TEL: (886)-3-5782345 FAX: (886)-3-5778671
Etron Technology, Inc., reserves the right to make changes to its products and specifications without notice.






EM564161BA-70 Datasheet, Funktion
EtronTech
Read Cycle
(See Note 1)
Address
CE1#
tAA
tCO1
tRC
EM564161
tOH
CE2
OE#
UB# , LB#
DO UT
Preliminary
tCO2
tOE
tBA
tBLZ
tOLZ
tLZ
6
tHZ
t OH Z
tBHZ
VALID DATA OUT
Rev 2.6
October 2000

6 Page









EM564161BA-70 pdf, datenblatt
EtronTech
Package Diagrams
48-Ball (6mm x 8mm) BGA
Units in mm
TOP VIEW
PIN 1 CORNER
123456
EM564161
BOTTOM VIEW
0.10 S C PIN 1 CORNER
0.25 S C A B
0.30 0.05(48X)
654321
- C - SEATING PLANE
-B-
-A-
0.20(4X)
0.10
0.75
3.75
Preliminary
12
Rev 2.6
October 2000

12 Page





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