29F52•29F53 8-Bit Registered Transceiver
April 1988
Revised August 1999
29F52•29F53
8-Bit Registered Transceiver
General Description
The 29F52 and 29F53 are 8-bit registered transceivers.
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 pro-
vided for each register. The A
0
–A
7
output pins are guaran-
teed to sink 24 mA while the B
0
–B
7
output pins are
designed for 64 mA.
The 29F53 is an inverting option of the 29F52. Both trans-
ceivers are AMD Am2952/2953 functional equivalents.
Features
s
8-bit registered transceivers
s
Separate clock, clock enable and 3-STATE output
enable provided for each register
s
AMD Am2952/2953 functional equivalents
s
Both inverting and non-inverting options available
s
24-Pin slimline package
Ordering Code:
Order Number
29F52SC
29F52SPC
29F53SPC
Package Number
M24B
N24C
N24C
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
29F52
29F53
IEEE/IEC
29F52
IEEE/IEC
29F53
© 1999 Fairchild Semiconductor Corporation
DS009606
www.fairchildsemi.com
29F52•29F53
Connection Diagrams
Pin Assignment for DIP and SOIC
29F52
Pin Assignment for DIP
29F53
Unit Loading/Fan Out
Pin Names
A
0
–A
7
B
0
–B
7
OEA
CPA
CEA
OEB
CPB
CEB
Description
A-Register Inputs/
B-Register 3-STATE Outputs
B Register Inputs/
A-Register 3-STATE Outputs
Output Enable A-Register
A-Register Clock
A-Register Clock Enable
Output Enable B-Register
B-Register Clock
B-Register Clock Enable
U.L.
HIGH/LOW
3.5/1.083
150/40 (33.3)
3.5/1.083
600/106.6 (80)
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
Input I
IH
/I
IL
Output I
OH
/I
OL
70
µA/0.65
mA
−3
mA/24 mA (20 mA)
70
µA/0.65
mA
−12
mA/64 mA (48 mA)
20
µA/−0.6
mA
20
µA/−0.6
mA
20
µA/−0.6
mA
20
µA/−0.6
mA
20
µA/−0.6
mA
20
µA/−0.6
mA
Output Control
OE
H
L
L
Internal
Q
X
L
H
Y-Output
29F52 29F53
Z
L
H
Z
H
L
Function
Register Function Table
(Applies to A or B Register)
Inputs
D
Disable Outputs
Enable Outputs
X
L
H
CP
X
N
N
CE
H
L
L
Internal
Q
NC
L
H
Function
Hold Data
Load Data
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
HIGH Impedance
N
=
LOW-to-HIGH Transition
NC
=
No Change
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2
29F52•29F53
Absolute Maximum Ratings
(Note 1)
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
V
CC
Pin Potential to Ground Pin
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with V
CC
=
0V)
Standard Output
3-STATE Output
Current Applied to Output
in LOW State (Max)
twice the rated I
OL
(mA)
−0.5V
to V
CC
−0.5V
to
+5.5V
−65°C
to
+150°C
−55°C
to
+125°C
−55°C
to
+150°C
−0.5V
to
+7.0V
−0.5V
to
+7.0V
−30
mA to
+5.0
mA
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to
+70°C
+4.5V
to
+5.5V
Note 1:
Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2:
Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
CD
V
OH
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
10% V
CC
10% V
CC
10% V
CC
5% V
CC
5% V
CC
V
OL
I
IH
I
BVI
I
BVIT
I
IL
I
IH
+
I
OZH
I
IL
+
I
OZL
I
OS
I
CEX
I
ZZ
I
CCH
I
CCL
I
CCZ
Output LOW
Voltage
Input HIGH Current
Input HIGH Current
Breakdown Test
Input HIGH Current
Breakdown Test (I/O)
Input LOW Current
Output Leakage Current
Output Leakage Current
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
130
−60
−100
10% V
CC
10% V
CC
2.5
2.4
2.0
2.7
2.7
0.5
0.55
20
100
1.0
−0.6
70
−650
−150
−225
250
500
190
190
190
µA
µA
mA
mA
mA
Max
0.0V
Max
Max
Max
V
µA
µA
mA
mA
µA
µA
mA
Min
Max
Max
Max
Max
Max
Max
Max
V
Min
Min
2.0
0.8
−1.2
Typ
Max
Units
V
V
V
Min
V
CC
Conditions
Recognized as a HIGH Signal
Recognized as a LOW Signal
I
IN
= −18
mA (Non I/O Pins)
I
OH
= −1
mA (A
n
)
I
OH
= −3
mA (A
n
, B
n
)
I
OH
= −15
mA (B
n
)
I
OH
= −1
mA (A
n
)
I
OH
= −3
mA (A
n
, B
n
)
I
OL
=
24 mA (A
n
)
I
OL
=
64 mA (B
n
)
V
IN
=
2.7V (Non-I/O Pins)
V
IN
=
7.0V (Non-I/O Pins)
V
IN
=
5.5V (A
n
, B
n
)
V
IN
=
0.5V (Non-I/O Pins)
V
OUT
=
2.7V (A
n
, B
n
)
V
OUT
=
0.5V (A
n
, B
n
)
V
OUT
=
0V (A
n
)
V
OUT
=
0V (B
n
)
V
OUT
=
V
CC
(A
n
, B
n
)
V
OUT
=
5.25V (A
n
, B
n
)
V
O
=
HIGH
V
O
=
LOW
V
O
=
HIGH Z
5
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