SGS Thomson Microelectronics HCF40208B Datasheet
. FOUR 4-BIT REGISTERS
.ONE INPUT AND TWO OUTPUT BUSES
.UNLIMITED EXPANSION IN BIT AND WORD
DIRECTIONS
.DATA LINESHAVE LATCHED INPUTS
.3-STATE OUTPUTS
.SEPARATE CONTROL OF EACH BUS,
ALLOWING SIMULTANEOUS INDEPENDENT
READINGOF ANY OF FOUR REGISTERSON
BUSAANDBUSBANDINDEPENDENTWRITING INTOANY OF THE FOUR REGISTERS
.40108B IS PIN-COMPATIBLE WITH INDUS-
TRY TYPEMC14580
.STANDARDIZED, SYMMETRICAL OUTPUT
CHARACTERISTICS
.QUIESCENT CURRENT SPECIFIED AT 20V
FOR HCC DEVICE
.5V, 10V,AND 15V PARAMETRIC RATINGS
.INPUT CURRENTOF100nAAT 18V AND25°C
FOR HCC DEVICE
.100% TESTEDFOR QUIESCENTCURRENT
.MEETSALLREQUIREMENTSOFJEDECTEN-
TATIVESTANDARDN°13A,”STANDARDSPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIESCMOS DEVICES”
HCC/H CF4 02 08B
4 x 4 MULTIPORT REGISTER
BEY
(Plastic Package)BF(Ceramic Frit SealPackage)
BM1
(MicroPackage)
ORDER CODES :
HCC40208BF HCF40208BEY
HCF40208BM1
PIN CONNECTIONS
DESCRIPT ION
TheHCC40208B (extended temperature range) and
HCF40208B (intermediate temperature range) are
monolithic integrated circuits, available in 24-lead dual
in-line plastic or ceramic package and plastic micro
package. The HCC/HCF40208B is a 4 x 4 multiport
register containing four 4-bit registers, write address
decoder, two separate read address decoders, and
two3-state output buses. When the ENABLEinput is
low,the corresponding output bus is switched, independently of theclock to ahigh-impedance state. The
high-impedance third state provides the outputs with
the capability of being connected to the bus lines in a
bus-organized systemwithout the need forinterface or
pull-up components. When the WRITE ENABLE input
is high, all data input linesare latched onthe positive
transitionof theCLOCKand thedata isentered into the
wordselectedbythewriteaddresslines. When WRITE
ENABLE is low, the CLOCKis inhibited and no new
dataisentered. Ineither case, the contents ofany word
may be accessed via the read address lines independent ofthestate of the CLOCKinput.
June1989
1/13
HCC/HCF40208B
FUN CTIONAL DIAG R A M
ABSOLUTE M AXI MUM RATI N GS
Symbol Parameter Value Unit
V
* Supply Voltage :HCC Types
DD
HCF Types
V
Input Voltage – 0.5 to VDD+ 0.5 V
i
I
DC Input Current (any one input) ± 10 mA
I
P
Total Power Dissipation (per package)
tot
Dissipation per Output Transistor
for T
T
Operating Temperature : HCC Types
op
= Full Package-temperature Range
op
HCF Types
T
Stresses above 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 external periods may affect device reliability.
* All voltages are with respect to VSS(GND).
Storage Temperature – 65 to + 150 °C
stg
– 0.5 to + 20
– 0.5 to + 18
200
100
– 55 t o + 125
–40to+85
V
V
mW
mW
°C
°C
RECOMMENDED OPERATING CO NDITIONS
Symbol Parameter Value Unit
V
T
2/13
Supply Voltage : HCC Types
DD
HCF Types
V
Input Voltage 0 to V
I
Operating Temperature : HCC Types
op
HCF Types
3to18
3to15
DD
– 55 t o + 125
–40to+85
V
V
V
°C
°C
SCHEM ATIC DIAGRAM
HCC/HCF40208B
3/13
HCC/HCF40208B
LOGI C DI AG RAM
TIM ING D IAG R AM
4/13
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