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PDF EM564166BC-70 Data sheet ( Hoja de datos )

Número de pieza EM564166BC-70
Descripción 256K x 16 Low Power SRAM
Fabricantes Etron Technology Inc. 
Logotipo Etron Technology  Inc. Logotipo



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No Preview Available ! EM564166BC-70 Hoja de datos, Descripción, Manual

EtronTech
EM564166
256K x 16 Low Power SRAM
Preliminary, Rev 1.0 05/2001
Features
Single power supply voltage of 2.3V to 3.6V
Power down features using CE#
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
EM564166BC-70/85
1 µA
10 µA
EM564166BC-70E/85E
5 µA
80 µA
Pin Configuration
48-Ball BGA (CSP), Top View
1234
5
6
A
LB# OE#
A0
A1
A2
NC
B
DQ8 UB#
A3
A4 CE# DQ0
C
DQ9 DQ10 A5
A6 DQ1 DQ2
D
GND DQ11 A17 A7
DQ3 VDD
E VDD DQ12 NC A16 DQ4 GND
F DQ14 DQ13 A14 A15 DQ5 DQ6
G DQ15 NC A12 A13 WE# DQ7
Ordering Information
H NC A8 A9 A10 A11 NC
Part Number
EM564166BC-70
EM564166BC-85
EM564166BC-70E
EM564166BC-85E
Speed
70 ns
85 ns
70 ns
85 ns
IDDS2
10 µA
10 µA
80 µA
80 µA
Package
6x8 BGA
6x8 BGA
6x8 BGA
6x8 BGA
Pin Description
Symbol
A0 - A17
DQ0 - DQ15
CE#
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 EM564166 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 (CE#) is asserted high. There are two control inputs. CE# 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 EM564166 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.

1 page




EM564166BC-70 pdf
EtronTech
EM564166
AC Characteristics and Operating Conditions (Ta = -40°C to 85°C, VDD = 2.3V to 3.6V)
Read Cycle
EM564166
Symbol
Parameter
-85 -70 Unit
Min Max Min Max
tRC
tAA
tCO1
tOE
tBA
tLZ
tOLZ
tBLZ
tHZ
tOHZ
tBHZ
tOH
Write Cycle
Read cycle time
Address access time
Chip Enable (CE#) Access Time
Output enable access time
Data Byte Control Access Time
Chip Enable Low to Output in Low-Z
Output enable Low to Output in Low-Z
Data Byte Control Low to Output in Low-Z
Chip Enable High to Output in High-Z
Output Enable High to Output in High-Z
Data Byte Control High to Output in High-Z
Output Data Hold Time
Symbol
Parameter
85 70
85 70
85 70
45 35
45 35
10 10
33
55
35 25
35 25
35 25
10 10
ns
EM564166
-85 -70 Unit
Min Max Min Max
tWC
tWP
tCW
tBW
tAS
tWR
tWHZ
tOW
tDS
tDH
Write cycle time
Write pulse width
Chip Enable to end of write
Data Byte Control to end of Write
Address setup time
Write Recovery time
WE# Low to Output in High-Z
WE# High to Output in Low-Z
Data Setup Time
Data Hold Time
85 70
55 55
70 60
70 60
00
00
35 30
55
35 30
00
ns
AC Test Condition
Output load : 50pF + one TTL gate
Input pulse level : 0.4V, 2.4V
Timing measurements : 0.5 x VDD
tR, tF : 5ns
Preliminary
5
Rev 1.0
May 2001

5 Page





EM564166BC-70 arduino
EtronTech
Package Diagrams
48-Ball (6mm x 8mm) BGA
Units in mm
TOP VIEW
PIN 1 CORNER
123456
EM564166
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
11
Rev 1.0
May 2001

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