FAST CMOS OCTAL REGISTERED TRANSCEIVERS
Description
FAST CMOS OCTAL REGISTERED TRANSCEIVERS
Integrated Device Technology, Inc.
IDT29FCT52AT/BT/CT/DT IDT29FCT2052AT/BT/CT IDT29FCT53AT/BT/CT
FEATURES:
• Common features: – Low input and output leakage ≤1µA (max.
) – CMOS power levels – True TTL input and output compatibility – VOH = 3.
3V (typ.
) – VOL = 0.
3V (typ.
) – Meets or exceeds JEDEC standard 18 specifications – Product available in Radiation Tolerant and Radiation Enhanced versions – Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) – Available in DIP, SOIC, SSOP, QSOP, CERPACK and LCC packages • Features for 29FCT52/29FCT53T: – A, B, C and D speed grades – High drive outputs (-15mA IOH, 64mA IOL) – Power off disable outputs permit “live insertion” • Features for 29FCT2052T: – A, B and C speed grades – Resistor outputs (-15mA IOH, 12mA IOL Com.
) (-12mA IOH, 12mA IOL Mil.
) – Reduced system switching noise
DESCRIPTION:
The IDT29FCT52AT/BT/CT/DT and IDT29FCT53AT/BT/ CT are 8-bit registered transceivers built using an advanced dual metal CMOS technology.
Two 8-bit back-to-back registers store data flowing in both directions between two bidirectional buses.
Separate clock, clock enable and 3-state output enable signals are provided for each register.
Both A outputs and B outputs are guaranteed to sink 64mA.
The IDT29FCT52AT/BT/CT/DT and IDT29FCT2052AT/BT/ CT are non-inverting options of the IDT29FCT53AT/BT/CT.
The IDT29FCT2052AT/BT/CT has balanced drive outputs with current limiting resistors.
This offers low ground bounce, minimal undershoot and controlled output fall times-reducing the need for external series terminating resistors.
The IDT29FCT2052T part is a plug-in replacement for IDT29FCT52T part.
FUNCTIONAL BLOCK DIAGRAM(1)
CPA CEA A0 A1 A2 A3 A4 A5 A6 A7 D 0 CE CP Q0 D1 D2 Q1 Q2 OEB B0 B1 B2 B3 B4 B5 B6 B7
D3 Q3 A Reg.
D4 Q4 D5 D6 D7 Q5 Q6 Q7
Q0 Q1 Q2
D0 D1 D2
Q3 D3 B Reg.
Q4 D4 Q5 Q6 OEA D5 D6
Q 7 CE CP D7
NOTE: 1.
IDT29FCT52T/IDT29FCT2052T function is shown.
IDT29FCT53T ...
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