Block Diagram – PGA Type Package(P1,P7) & CQFP(F2)
512Kx8
512Kx8
512Kx8
512Kx8
CE 4
OE
A 0 – A 18
I/O 0-7
I/O 8-15
I/O 16-23
I/O 24-31
8888CE 3WE 4WE 3WE 2WE 1CE 1CE 2Pin Description I/O 0-31
Data I/O
A 0–18Address Inputs WE 1–4Write Enables CE 1–4Chip Enables OE Output Enable V cc Power Supply GND Ground NC
Not Connected
General Description
The ACT–S512K32V is a High Speed 4 megabit CMOS SRAM Multichip Module (MCM)designed for full temperature range, 3.3V Power Supply,military, space, or high reliability mass memory and fast cache applications.
The MCM can be organized as a 512K x 32 bits, 1M x 16bits or 2M x 8 bits device and is input and output TTL compatible. Writing is executed when the write enable (WE)and chip enable (CE) inputs are low. Reading is accomplished when WE is high and CE and output enable (OE) are both low. Ac
cess time grades of 17ns, 20ns, 25ns, 35ns and 45ns maximum are standard.The products are designed for operation over the temperature range of -55°C to +125°C and screened under the full military environment. DESC Standard Military Drawing (SMD) part numbers are pending. The ACT -S512K32V is manufactured in Aeroflex’s 80,000ft 2 MIL-PRF-38534certified facility in Plainview,N.Y .
Features
s 4 Low Power CMOS 512K x 8 SRAMs in one MCM s Overall configuration as 512K x 32s Input and Output TTL Compatible
golgos 17, 20, 25, 35 & 45ns Access Times, 15ns Available by
Special Order
s Full Military (-55°C to +125°C) Temperature Range s +3.3V Power Supply
s Choice of Surface Mount or PGA Type Co-fired Packages:
q 68–Lead, Dual-Cavity CQFP (F2), .88"SQ x .20"max (.18"max
thickness available, contact factory for details) (Drops into the 68 Lead JEDEC .99"SQ CQFJ footprint)
q 66–Pin, PGA-Type (P1), 1.38"SQ x .245"max q 66–Pin, PGA-Type (P7), 1.08"SQ x .185"max
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s Internal Decoupling Capacitors s DESC SMD# Pending
CIRCUIT TECHNOLOGY
/act1.htm
ACT -S512K32V High Speed 3.3Volt 16 Megabit SRAM Multichip Module
Absolute Maximum Ratings
Symbol Rating Range Units
五年级课程>口语革命T C Ca Operating T emperature
Speed 15ns-40 to +85°C Speed 17ns to 45ns-55 to +125°C
T STG Storage T emperature-65 to +150°C P D Maximum Package Power Dissipation
P1,P7 Package F2 Package 3.0W 2.7W
ØJ-C Hottest Die, Max Thermal Resistance - Junction to Ca
P1,P7 Package F2 Package 2.0°C/W 8.0°C/W
V G Maximum Signal Voltage to Ground-0.5 to +4.6V T L Maximum Lead Temperature (10 conds)300°C
Normal Operating Conditions
Symbol Parameter Minimum Maximum Units V CC Power Supply Voltage+3.0+3.6V V IH Input High Voltage+2.0V CC + 0.3V V IL Input Low Voltage-0.3+0.8V
Capacitance
(f = 1MHz, T C = 25°C)
Symbol Parameter Maximum Units
强调英文C A
D A0 – A18 Capacitance 50pF
C OE OE Capacitance50pF C WE Write Enable Capacitance20pF
C CE Chip Enable Capacitance20pF
C I/O I/O0 – I/O31 Capacitance20pF Capacitance is guaranteed by design but not tested.
DC Characteristics
(3.0Vdc< V CC < 3.6Vdc, V SS = 0V, T C = -55°C to +125°C, Unless otherwi specified)
Parameter Sym Conditions ALL Speeds
Min Max
Units
Input Leakage Current I LI V CC = Max, V IN=0or V CC10µA Output Leakage Current I LO CE = V IH, OE = V IH, V OUT=0or V CC10µA
Operating Supply Current 32 Bit Mode I CC1x32CE = V IL, OE = V IH, f = 5 MHz, V CC = Max,
CMOS Compatible
600mA
Standby Current I SB1CE = V IH, OE = V IH, f = 5 MHz, V CC = Max,
CMOS Compatiblesuperstars
80mA
Operating Supply Current 32 Bit Mode I CC2x32CE = V IL, OE = V IH, f = 50 MHz, V CC =
Max, CMOS Compatible
750mA
Standby Current I SB2CE = V CC, OE = V IH, f = 50 MHz, V CC =
worldpeaceMax, CMOS Compatible
240mA Output Low Voltage V OL I OL = 8 mA, V CC = Min0.4V Output High Voltage V OH I OH = -4.0 mA, V CC = Min 2.4V
AC Characteristics
(V CC = 3.3V, V SS = 0V, Tc = -55°C to +125°C) Read Cycle
Parameter Sym
–017
Min Max
–020
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Min Max
–025
越狱之最后一越Min Max
–035
Min Max
–045
Min Max
Units
Read Cycle Time t RC1720253545ns Address Access Time t AA1720253545ns Chip Enable Access Time t ACS1720253545ns Output Hold from Address Change t OH00000ns Output Enable to Output Valid t OE910122535ns Chip Enable to Output in Low Z * t CLZ33333ns Output Enable to Output in Low Z * t OLZ00000ns Chip Delect to Output in High Z * t CHZ88101515ns Output Disable to Output in High Z * t OHZ88101515ns * Parameters guaranteed by design but not tested
Write Cycle
Parameter Sym
–017
Min Max
–020
Min Max
–025
Min Max
–035
Min Max
–045
Min Max
Units
Write Cycle Time t WC1720253545ns Chip Enable to End of Write t CW1515203035ns Address Valid to End of Write t AW1515203035ns Data Valid to End of Write t DW1212152030ns Write Pul Width t WP1313152535ns Address Setup Time t AS00000ns Output Active from End of Write *t OW00000ns Write to Output in High Z * t WHZ811131515ns Data Hold from Write Time t DH00000ns Address Hold Time t AH01222ns * Parameters guaranteed by design but not tested
Truth Table
Mode CE OE WE Data I/O Power
Standby H X X High Z Standby (delect/power down)
Read L L H Data Out Active
Read L H H High Z Active (delected)
Write L X L Data In Active
Pin Numbers & Functions 66 Pins — PGA-Type
Pin #Function Pin #Function Pin #Function Pin #Function 1I/O 818A 1235I/O 2552WE 32I/O 919Vcc 36I/O 2653CS 33I/O 1020CS 137A 654GND 4A 1321NC 38A 755I/O 195A 1422I/O 339NC 56I/O 316A 1523I/O 1540A 857I/O 307A 1624I/O 1441A 958I/O 298A 1725I/O 1342I/O 1659I/O 289I/O 026I/O 1243I/O 1760A 010I/O 127OE 44I/O 1861A 111I/O 228A 1845V CC 62A 212WE 229WE 146CS 463I/O 2313CS 230I/O 747WE 464I/O 2214GND 31I/O 648I/O 2765I/O 2115I/O 1132I/O 549A 366
I/O 20
16A 1033I/O 450A 417
A 11
34
I/O 24
51
A 5
1.400 SQ 1.000.600 1.000.100.020.016
.100 TYP
.145MIN
.025.035
.245MAX Pin 56
Pin 66
Pin 11tomatoes是什么意思
Pin 1
Bottom View
MAX TYP TYP
TYP
.050 DIA TYP
TYP
"P1" — 1.40" SQ PGA Type Package
Side View
Pin Numbers & Functions 66 Pins — PGA-Type
Pin #Function Pin #Function Pin #Function Pin #Function 1I/O 818A 1235I/O 2552WE 32I/O 919Vcc 36I/O 2653CE 33I/O 1020CE 137A 654GND 4A 1321NC 38A 755I/O 195A 1422I/O 339NC 56I/O 316A 1523I/O 1540A 857I/O 307A 1624I/O 1441A 958I/O 298A 1725I/O 1342I/O 1659I/O 289I/O 026I/O 1243I/O 1760A 010I/O 127OE 44I/O 1861A 111I/O 228A 1845V CC 62A 212WE 229WE 146CE 463I/O 2313CE 230I/O 747WE 464I/O 2214GND 31I/O 648I/O 2765I/O 2115I/O 1132I/O 549A 366
I/O 20
16A 1033I/O 450A 417
A 11
34
I/O 24
51
A 5
All dimensions in inches
.145MIN
1.085 SQ 1.000.600TYP
1.000.100 TYP
Pin 56
Pin 66
Pin 11
Pin 1
Bottom View
MAX .020.016
.100.025.185MAX Side View .050 DIA .035
TYP
TYP TYP
TYP "P7" — 1.08" SQ PGA Type Package
