IDT29FCT52AT/BT/CT/DT
IDT29FCT2052AT/BT/CT
IDT29FCT53AT/BT/CT
FAST CMOS
OCTAL REGISTERED
TRANSCEIVERS
Integrated Device Technology, Inc.
FEATURES:
• Common features:
– Low input and output leakage ≤1µA (max.)
– CMOS power levels
– True TTL input and output compatibility
– VOH = 3.3V (typ.)
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 regis-
ters store data flowing in both directions between two bidirec-
tional 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.
TheIDT29FCT52AT/BT/CT/DTandIDT29FCT2052AT/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.
– 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
FUNCTIONAL BLOCK DIAGRAM(1)
CPA
CEA
OEB
CE CP
A
A
A
A
A
A
A
A
0
1
2
3
4
5
6
7
B
B
B
B
B
B
B
B
0
1
2
3
4
5
6
7
D
D
D
D
D
D
D
D
0
1
2
3
4
5
6
7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
A
Reg.
Q
Q
Q
Q
Q
Q
Q
Q
0
1
2
3
4
5
6
7
D0
D1
D2
D3
D4
D5
D6
D7
B
Reg.
CE CP
OEA
CPB
CEB
NOTE:
1. IDT29FCT52T/IDT29FCT2052T function is shown. IDT29FCT53T is
the inverting option.
2629 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
JUNE 1995
1995 Integrated Device Technology, Inc.
6.1
DSC-4224/5
1
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
