IDT54/74FCT162511AT/CT
FASTCMOS16-BITREGISTERED/LATCHEDTRANSCEIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
FAST CMOS 16-BIT
IDT54/74FCT162511AT/CT
REGISTERED/LATCHED
TRANSCEIVER WITH PARITY
FEATURES:
DESCRIPTION:
• 0.5 MICRON CMOS Technology
The FCT162511T 16-bit registered/latched transceiver with parity is built
usingadvanceddualmetalCMOStechnology. This high-speed, low-power
transceivercombinesD-typelatchesandD-typeflip-flopstoallowdataflowin
transparent, latched, or clocked modes. The device has a parity generator/
checkerintheA-to-BdirectionandaparitycheckerintheB-to-Adirection. Error
checkingisdoneatthebytelevelwithseparateparitybitsforeachbyte. Separate
errorflagsexitsforeachdirectionwithasingleerrorflagindicatinganerrorfor
eitherbyteintheA-to-Bdirectionandaseconderrorflagindicatinganerrorfor
eitherbyteintheB-to-Adirection. Theparityerrorflagsareopendrainoutputs
whichcanbetiedtogetherand/ortiedwithflagsfromotherdevicestoformasingle
errorflagorinterrupt. The parityerrorflags are enabledbythe OExx control
pins allowing the designer to disable the error flag during combinational
transitions.
Thecontrolpins LEAB,CLKAB,andOEAB controloperationintheA-to-B
directionwhileLEBA,CLKBA,andOEBAcontroltheB-to-Adirection. GEN/
CHKisonlyfortheselectionofA-to-Boperation. TheB-to-Adirectionisalways
incheckingmode. TheODD/EVENselectiscommonbetweenthetwodirections.
Except for the ODD/EVEN control, independent operation can be achieved
betweenthetwodirectionsbyusingthecorrespondingcontrollines.
• Typical tsk(o) (Output Skew) < 250ps, clocked mode
• Low input and output leakage ≤1µA (max)
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
• VCC = 5V ±10%
• Balanced Output Drivers:
– ±24mA(industrial)
– ±16mA(military)
• Series current limiting resistors
• Generate/Check, Check/Check modes
• Open drain parity error allows wire-OR
• Available in the following packages:
– Industrial: SSOP, TSSOP
– Military: CERPACK
FUNCTIONALBLOCKDIAGRAM
LEAB
CLKAB
Data
OEAB
Parity, data
B0-15
16
18
PB1,2
Parity
Latch/
Register
GEN/CHK
Byte
2
Parity
PERB
Generator/
Checker
A0-15
PA1,2
(Open Drain)
ODD/EVEN
LEBA
CLKBA
Parity, Data
18
Parity, data
18
Latch/
Register
OEBA
Byte
Parity
Checking
PERA
(Open Drain)
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SEPTEMBER 2009
1
© 2009 Integrated Device Technology, Inc.
DSC-2916/4