White Electronic Designs EDI88512CA User Manual

查询EDI88512CA供应商

512Kx8 Monolithic SRAM, SMD 5962-95600

EDI88512CA

FEATURES

■ Access Times of 15, 17, 20, 25, 35, 45, 55ns

■ Data Retention Function (LPA version)

■ TTL Compatible Inputs and Outputs

■ Fully Static, No Clocks

■ Organized as 512Kx8

■ Commercial, Industrial and Military Temperature Ranges

■ 32 lead JEDEC Approved Evolutionary Pinout

• Ceramic Sidebrazed 600 mil DIP (Package 9)

• Ceramic Sidebrazed 400 mil DIP (Package 326)

• Ceramic 32 pin Flatpack (Package 344)

• Ceramic Thin Flatpack (Package 321)

• Ceramic SOJ (Package 140)

■ 36 lead JEDEC Approved Revolutionary Pinout

• Ceramic Flatpack (Package 316)

• Ceramic SOJ (Package 327)

• Ceramic LCC (Package 502)

■ Single +5V (±10%) Supply Operation

FIG. 1 PIN CONFIGURATION

36 PIN

TOP VIEW

A18
A16
A14
A12

A7
A6
A5
A4
A3
A2
A1

A0
I/O0
I/O1
I/O2

V

SS

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

32 PIN

TOP VIEW

The EDI88512CA is a 4 megabit Monolithic CMOS
Static RAM.

The 32 pin DIP pinout adheres to the JEDEC evolu­tionary standard for the four megabit device. All 32 pin
packages are pin for pin upgrades for the single chip
enable 128K x 8, the EDI88128CS. Pins 1 and 30 be­come the higher order addresses.

The 36 pin revolutionary pinout also adheres to the
JEDEC standard for the four megabit device. The cen­ter pin power and ground pins help to reduce noise in
high performance systems. The 36 pin pinout also
allows the user an upgrade path to the future 2Mx8.

A Low Power version with Data Retention
(EDI88512LPA) is also available for battery backed
applications. Military product is available compliant to
Appendix A of MIL-PRF-38535.

PIN DESCRIPTION

I/O0-7 Data Inputs/Outputs

A0-18 Address Inputs

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

V

CC

A15
A17
WE
A13
A8
A9
A11
OE
A10
CS
I/O7
I/O6
I/O5
I/O4
I/O3

WE Write Enables

CS Chip Selects

OE Output Enable

VCC Power (+5V ±10%)

VSS Ground

NC Not Connected

BLOCK DIAGRAM

Memory Array

Aug. 2002 Rev. 9

A

-18

WE

CS
OE

1 White Electronic Designs Corporation • [phone] • www.whiteedc.com

Address

Buffer

Address
Decoder

I/O

Circuits

I/O

-7

EDI88512CA

ABSOLUTE MAXIMUM R ATINGS

Parameter Unit

Voltage on any pin relative to Vss -0.5 to 7.0 V
Operating Temperature TA (Ambient)
Commercial 0 to +70 °C
Industrial -40 to +85 °C
Military -55 to +125 °C
Storage Temperature, Plastic -65 to +150 °C
Power Dissipation 1.5 W
Output Current 20 mA
Junction Temperature, T

NOTE:

Stress 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 greater than those indicated in the operational sections of
this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability.

J 175 °C

OE CS WE Mode Output Power

X H X Standby High Z Icc2, Icc3

H L H Output Deselect High Z Icc1

L L H Read Data Out Icc1
X L L Write Data In Icc1

RECOMMENDED OPERATING CONDITIONS

Parameter Symbol Min Typ Max Unit

Supply Voltage VCC 4.5 5.0 5.5 V
Supply Voltage VSS 00 0V
Input High Voltage VIH 2.2 — 3.0 V
Input Low Voltage V

Parameter Symbol Condition Max Unit

Address Lines CI VIN = Vcc or Vss, f = 1.0MHz 12 pF
Data Lines C

These parameters are sampled, not 100% tested.

TRUTH TABLE

IL -0.3 — +0.8 V

CAPACITANCE

(TA = +25°C)

O VOUT = Vcc or Vss, f = 1.0MHz 14 pF

DC CHARACTERISTICS

(VCC = 5V, TA = -55°C TO +125°C)

Parameter Symbol Conditions Units

Input Leakage Current ILI VIN = 0V to VCC -10 10 µA
Output Leakage Current ILO VI/O = 0V to VCC -10 10 µA
Operating Power Supply Current ICC1 WE, CS = VIL, II/ O = 0mA, Min Cycle (17ns) — 250 mA

Standby (TTL) Power Supply Current ICC2 CS ³ VIH, VIN £ VIL, VIN ³ VIH —60mA
Full Standby Power Supply Current I CC3 CS ³ VCC -0.2V CA — 25 mA

Output Low Voltage VOL IOL = 8.0mA — 0.4 V
Output High Voltage V

NOTE: DC test conditions: V

IL = 0.3V, VIH = Vcc -0.3V

(20 -55ns) — 225 mA

VIN ³ Vcc -0.2V or VIN £ 0.2V LPA — 20 mA

OH IOH = -4.0mA 2.4 — V

Min Max

AC TEST CONDITIONS

Figure 1 Figure 2

Q

255Ω

White Electronic Designs Corporation • Phoenix AZ • [phone]

Vcc

480Ω

30pF

Vcc

Q

255Ω

480Ω

5pF

Input Pulse Levels VSS to 3.0V
Input Rise and Fall Times 5ns
Input and Output Timing Levels 1.5V
Output Load Figure 1

NOTE: For t

2

EHQZ, tGHQZ and tWLQZ, CL = 5pF Figure 2)

AC CHARACTERISTICS – READ CYCLE

(VCC = 5.0V, VSS = 0V, TA = -55°C TO +125°C)

EDI88512CA

Parameter JEDEC Alt. Min Max Min Max Min Max Min Max Min Max M in Max Min Max Units

Symbol 15ns 17ns 20ns 25ns 35ns 45ns 55ns

Read Cycle Time tAVAV tRC 15 17 20 25 35 45 55 n s
Address Access Time tAVQV tAA 15 17 20 25 35 45 55 ns
Chip Enable Access Time tELQV tACS 15 17 20 25 35 45 55 ns
Chip Enable to Output in Low Z (1) tELQX tCLZ 2333333ns
Chip Disable to Output in High Z (1) tEHQZ tCHZ 07 07 08 010015020020ns
Output Hold from Address Change tAVQX t OH 0000000ns
Output Enable to Output Valid tGLQV tOE 8 8 10 12 15 25 30 ns
Output Enable to Output in Low Z (1) tGLQX tOLZ 0000000ns
Output Disable to Output in High Z(1) t

GHQZ tOHZ 07 07 08 010015020020ns

1. This parameter is guaranteed by design but not tested.

AC CHARACTERISTICS – WRITE CYCLE

(VCC = 5.0V, VSS = 0V, TA = -55°C TO +125°C)

Parameter JEDEC Alt. Min Max Min Max Min Max M in Max Min Max Min Max Min Max Units

Write Cycle Time tAVAV tWC 15 17 20 25 35 45 55 ns
Chip Enable to End of Write t

Address Setup Time t

Address Valid to End of Write t

Write Pulse Width t

Write Recovery Time t

Data Hold Time t

Write to Output in High Z (1) tWLQZ t WHZ 080808010025030030ns
Data to Write Time t

Output Active from End of Write (1) t

1. This parameter is guaranteed by design but not tested.

Symbol 15ns 17ns 20ns 25ns 35ns 45ns 55ns

ELWH tCW 13 14 15 17 25 30 50 n s

tELEH tCW 13 14 15 17 25 30 50 n s

AVWL tAS 00 00000ns

tAVEL tAS 00 00000ns

AVWH tAW 13 14 15 17 25 30 50 ns

tAVEH t AW 13 14 15 17 25 30 50 ns

WLWH t WP 13 14 15 17 25 30 45 ns

tWLEH tWP 13 14 15 17 25 30 45 ns

WHAX tWR 00 00000ns

tEHAX t WR 00 00000ns

WHDX tDH 00 00000ns

tEHDX t DH 00 00000ns

DVWH tDW 8 8 10 12 20 25 40 ns

tDVEH t DW 8 8 10 12 20 25 30 n s

WHQX tWLZ 00 00000ns

3 White Electronic Designs Corporation • [phone] • www.whiteedc.com