AK63232W Datasheet, PDF (1/2 Pages) ACCUTEK MICROCIRCUIT CORPORATION – 32,768 x 32 Bit CMOS/BiCMOS Static Random Access Memory

Accutek
Microcircuit
Corporation
AK63232W
32,768 x 32 Bit CMOS/BiCMOS
Static Random Access Memory
DESCRIPTION
The Accutek AK63232W SRAM Module consists of fast high perfor-
mance SRAMs mounted on a low profile, 64 pin SIM Board. The
module utilizes four 28 pin 32K x 8 SRAMs in SOJ packages and
four decoupling capacitor chips on one side of the circuit board.
The SRAMs used have common I/O functions and single output en-
able functions. Also, four separate chip select (CE) connections are
used to independently enable the four bytes. The modules can be
supplied in a variety of access time values from 12 nSEC to
45 nSEC in CMOS or BiCMOS technology.
The Accutek module is designed for the lowest height off the board,
consistent with the availability of commonly available SRAM SOJ
package configurations. Each conforms to JEDEC - standard sizes
and pin-out configurations. This, along with use of two pins for mod-
ule memory density identification, PD₀ and PD₁, minimizes
interchangeability and design considerations when changing from
one module size to the other in customer applications.
FEATURES
· 32,768 x 32 bit organization
· JEDEC Standardized 64 pin SIM format
· Common I/O, single OE functions with four separate chip
selects (CE)
· Low height, 0.600 inch maximum, for mounting in straight-up or
angled SIM sockets
Pin 1
1
Pin 1
Pin 1
Pin 1
· Upward compatible with 64k x 32, AK63264W, 256K x 32,
AK6322W and 1 meg x 32, AK6321024W designs
· Presence Detect, PD₀ and PD₁ for identifying module density
· Fast Access Times range from 12 nSEC BiCMOS to 45 nSEC
CMOS
· TTL compatible inputs and outputs
· Single 5 volt power supply - AK63232W
· Single 3.3 volt power supply - AK63232W/3.3
· Operating temperature range in free air, 0⁰C to 70⁰C
PIN NOMENCLATURE
A₀ - A₁₄
CE₁ - CE₄
DQ₁ - DQ₃₂
OE
PD₀ - PD₁
Vcc
Vss
WE
Address Inputs
Chip Enable
Data In/Data Out
Output Enable
Presence Detect
Power Supply
Ground
Write Enable
MODULE OPTIONS
Leadless SIM: AK63232W
Leaded SIP: AK63232G
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL PIN # SYMBOL
1 Vss 17 A2 33 CE4 49 A4
2 PD0 18 A9 34 CE3 50 A11
3 PD1 19 DQ13 35 NC 51 A5
4 DQ1 20 DQ5 36 NC 52 A12
5 DQ9 21 DQ14 37 OE 53 Vcc
6 DQ2 22 DQ6 38 Vss 54 A13
7 DQ10 23 DQ15 39 DQ25 55 A6
8 DQ3 24 DQ7 40 DQ17 56 DQ21
9 DQ11 25 DQ16 41 DQ26 57 DQ29
10 DQ4 26 DQ8 42 DQ18 58 DQ22
11 DQ12 27 Vss 43 DQ27 59 DQ30
12 Vcc 28 WE 44 DQ19 60 DQ23
13 A0 29 NC 45 DQ28 61 DQ31
14 A7 30 A14 46 DQ20 62 DQ24
15 A1 31 CE2 47 A3 63 DQ32
16 A8 32 CE1 48 A10 64 Vss
PD0 = Open
PD1 = Open
A0 - A14
15
OE
WE
CE1
CE2
CE3
CE4
AO-
A14
DQ1
DQ2
DQ3
OE DQ4
DQ5
WE DQ6
DQ7
DQ8
CE
AO-
A14
DQ1
DQ2
DQ3
DQ4
OE _DQ5
DQ6
WE DQ7
DQ8
CE
AO-
A14
DQ1
DQ2
DQ3
OE
DQ4
DQ5
DQ6
WE _DQ7
DQ8
CE
AO-
A14
DQ1
DQ2
DQ3
DQ4
OE _DQ5
DQ6
WE DQ7
DQ8
CE
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32