|
Details, datasheet, quote on part number:V62C2182048
| |
Datasheet text preview:
MOSEL VITELIC
V62C2182048 256K X 8 LOW POWER, LOW VOLTAGE SRAM
PRELIMINARY
Features
s s s s s s s s High-speed: 55, 70 ns Ultra low standby current of 2µA (max.) Fully static operation All inputs and outputs directly compatible Three state outputs Ultra low data retention current (VCC = 2V) Extended operating voltage: 2.3V3.6V Packages 32-Pin TSOP 48-Ball CSP BGA
Description
The V62C2182048 is a very low power CMOS static RAM organized as 131,072 words by 8 bits. Easy memory expansion is provided by an active LOW CE1, and active HIGH CE2, an active LOW O E, and three static I/O's. This device has an a u t o m a t i c power-down mode feature when deselected.
Functional Block Diagram
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9
Input Buffer
Row Decoder
1024 x 2048
SAense Amp
I/O7
I/O0
Column Decoder A10 A11 A12 A13 A14 A15 A16 A17
Control Circuit
OE WE CE1 CE2
2182048 01
Device Usage Chart
Operating Temperature Range 0°C to 70 °C 40°C to +85°C Package Outline T · · B · · Access Time (ns) 55 · · 70 · · L · Power LL · · Temperature Mark Blank I
V62C2182048 Rev. 1.0 November 1999
1
MOSEL VITELIC
Pin Descriptions
A0A17 Address Inputs These 18 address inputs select one of the 256K x 8 bit segments in the RAM. CE1 , CE 2 Chip Enable Inputs CE1 is active LOW and CE2 is active HIGH. Both chip enables must be active to read from or write to the device. If either chip enable is not active, the d e v i c e is deselected and is in a standby power mode. The I/O pins will be in the high-impedance state when deselected. Output Enable Input OE The Output Enable input is active LOW. When OE is LOW with CE LOW and WE HIGH, data of the selected memory location will be available on the I/O pins. When OE is HIGH, the I/O pins will be in the high impedance state.
V62C2182048
WE Write Enable Input An active LOW input, WE input controls read and write operations. When CE and WE inputs are both L O W , the data present on the I/O pins will be written into the selected memory location. I/O 0I/O 7 Data Input and Data Output Ports These 8 bidirectional ports are used to read data from and write data into the RAM. V CC GND Power Supply Ground
Pin Configurations (Top View)
32-Pin TSOP (Standard)
A11 A9 A8 A13 WE CE2 A15 VCC A17 A16 A14 A12 A7 A6 A5 A4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
2182048 02
OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3 GND I/O2 I/O1 I/O0 A0 A1 A2 A3
48 BGA
1 2 3 4 5 6 A A B B C D E F G H C D E F G H I/O4 I/O5 VSS VCC I/O6 I/O7 A9 A2 NC NC NC NC OE A10 WE NC NC NC NC CE1 A11 A4 A5 NC NC A17 A16 A12 A7 NC NC NC NC A15 A13 I/O0 I/O1 VCC VSS I/O2 I/O3 A14
2182048-03
1 A0
2 A1
3 CE2
4 A3
5 A6
6 A8
Note: NC means no connect. TOP VIEW TOP VIEW
V62C2182048 Rev. 1.0 November 1999
2
MOSEL VITELIC
Part Number Information
V
MOSEL-VITELIC MANUFACTURED
V62C2182048
62
C
21
8
2048
TEMP.
SRAM FAMILY
OPERATING VOLTAGE
DENSITY PWR. 2048K SPEED 55 ns 70 ns
PKG
BLANK = 0°C to 70°C I = -40°C to +85°C
62 = STANDARD C = CMOS PROCESS 21 = 2.3V3.6V
T = TSOP STANDARD B = BGA ORGANIZATION 8 = 8-bit L = LOW POWER LL = LOW LOW POWER
2182048 04
Absolute Maximum Ratings (1)
Symbol
VCC VN VDQ TBIAS TSTG
Parameter
Supply Voltage Input Voltage Input/Output Voltage Applied Temperature Under Bias Storage Temperature
Commercial
-0.5 to + VCC + 0.5 -0.5 to + VCC + 0.5 VCC + 0.3 -10 to +125 -55 to +125
Industrial
-0.5 to + VCC + 0.5 -0.5 to + VCC + 0.5 VCC + 0.3 -65 to +135 -65 to +150
Units
V V V °C °C
NOTE: 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Capacitance*
TA = 25°C, f = 1.0MHz
Symbol CIN COUT Parameter Input Capacitance Output Capacitance Conditions VIN = 0V VI/O = 0V Max. 6 8 Unit pF pF
Truth Table
Mode
Standby Standby Output Disable Read Write
CE1
H X L L L
CE2
X L H H H
OE
X X H L X
WE
X X H H L
I/O Operation
High Z High Z High Z DOUT DIN
NOTE: 1. This parameter is guaranteed and not tested.
NOTE: X = Don't Care, L = LOW, H = HIGH
V62C2182048 Rev. 1.0 November 1999
3
|
|
