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Details, datasheet, quote on part number:V62C51864
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Datasheet text preview:
MOSEL VITELIC
V62C51864 8K X 8 STATIC RAM
PRELIMINARY
Features
s High-speed: 35, 70 ns s Ultra low DC operating current of 5mA (max.) s Low Power Dissipation: TTL Standby: 2 mA (Max.) CMOS Standby: 15 mA (Max.) s Fully static operation s All inputs and outputs directly compatible s Three state outputs s Ultra low data retention current (VCC = 2V) s Single 5V ± 10% Power Supply s Packages 28-pin 600 mil PDIP 28-pin 330 mil SOP (450 mil pin-to-pin)
Description
The V62C51864 is a 65,536-bit static random access memory organized as 8,192 words by 8 bits. It is built with MOSEL VITELIC's high performance CMOS process. Inputs and threestate outputs are TTL compatible and allow for direct interfacing with common system bus structures.
Functional Block Diagram
A0 Row Decoder 512 x 128 Memory Array VCC GND
A8
I/O0 Input Data Circuit I/O7 A9 CE2 CE1 OE WE
Column I/O Column Decoder
A12
Control Circuit
51864 01
Device Usage Chart
Operating Temperature Range 0°C to 70°C 40°C to +85°C Package Outline P · · F · · Access Time (ns) 35 · · 70 · · L · · Power LL · · Temperature Mark Blank I
V62C51864 Rev. 2.1 June 1998
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MOSEL VITELIC
Pin Descriptions
A0 A12 Address Inputs These 13 address inputs select one of the 8,192 x 8-bit words in the RAM. CE1, CE2 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 CE1 LOW, CE2 HIGH, and WE HIGH, d a t a 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.
V62C51864
WE Write Enable Input An active LOW input, WE input controls read and write operations. When CE1 and WE inputs are both LOW with CE2 HIGH, the data present on the I/O pins will be written into the selected memory location. I/O0 I/O7 Data Input/Output Ports These 8 bidirectional ports are used to read data from and write data into the RAM. VCC GND Power Supply Ground
Pin Configuration 28-Pin Plastic DIP/SOP Top View
NC A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15
51864 02
VCC WE CE2 A8 A9 A11 OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3
V62C51864 Rev. 2.1 June 1998
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MOSEL VITELIC
Part Number Information
V
MOSEL-VITELIC MANUFACTURED
V62C51864
62
C
51
8
64
TEMP.
SRAM FAMILY
OPERATING VOLTAGE
DENSITY 64K PWR.
SPEED
PKG
BLANK = 0¡C to 70¡C I = -40¡C to +85¡C P = 600 mil PDIP F = 330 mil SOP (450 mil pin-to-pin)
62 = STANDARD C = CMOS PROCESS 51 = 5V
ORGANIZATION 8 = 8-bit
35 ns 70 ns L = LOW POWER LL = DOUBLE LOW POWER
51864 05
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 +7 -0.5 to +7 V CC + 0.5 -10 to +125 -55 to +125
Industrial
-0.5 to +7 -0.5 to +7 VCC + 0.5 -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 V = 0V IN V = 0V I/O 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: * This parameter is guaranteed and not tested.
NOTE: X = Don't Care, L = LOW, H = HIGH
V62C51864 Rev. 2.1 June 1998
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