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부품번호 | 74ABT16652 기능 |
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기능 | 16-Bit Transceivers and Registers with 3-STATE Outputs | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 9 페이지수
April 1993
Revised January 1999
74ABT16652
16-Bit Transceivers and Registers with 3-STATE Outputs
General Description
The ABT16652 consists of sixteen bus transceiver circuits
with D-type flip-flops, and control circuitry arranged for mul-
tiplexed transmission of data directly from the input bus or
from the internal registers. Each byte has separate control
inputs which can be shorted together for full 16-bit opera-
tion. Data on the A or B bus will be clocked into the regis-
ters as the appropriate clock pin goes to HIGH logic level.
Output Enable pins (OEAB, OEBA) are provided to control
the transceiver function.
Features
s Independent registers for A and B buses
s Multiplexed real-time and stored data
s Separate control logic for each byte
s A and B output sink capability of 64 mA, source
capability of 32 mA
s Guaranteed output skew
s High impedance glitch free bus loading during entire
power up and power down cycle
s Nondestructive hot insertion capability
Ordering Code:
Order Number Package Number
Package Description
74ABT16652CSSC
MS56A
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300” Wide
74ABT16652CMTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Pin Descriptions
Connection Diagram
Pin Names
A0–A16
B0–B16
CPABn, CPBAn
SABn, SBAn
OEABn, OEBAn
Descriptions
Data Register A Inputs/
3-STATE Outputs
Data Register B Inputs/
3-STATE Outputs
Clock Pulse Inputs
Select Inputs
Output Enable Inputs
© 1999 Fairchild Semiconductor Corporation DS011599.prf
www.fairchildsemi.com
Absolute Maximum Ratings(Note 2)
Over Voltage Latchup (I/O)
10V
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
VCC Pin Potential to
Ground Pin
Input Voltage (Note 3)
Input Current (Note 3)
Voltage Applied to Any Output
in the Disable or Power-Off State
in the HIGH State
Current Applied to Output
in LOW State (Max)
DC Latchup Source Current
−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
−0.5V to +5.5V
−0.5V to VCC
twice the rated IOL (mA)
−500 mA
Recommended Operating
Conditions
Free Air Ambient Temperature
−40°C to +85°C
Supply Voltage
+4.5V to +5.5V
Minimum Input Edge Rate (∆V/∆t)
Data Input
50 mV/ns
Enable Input
20 mV/ns
Clock Input
100 mV/ns
Note 2: 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 3: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
VIH
VIL
VCD
VOH
VOL
VID
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW Voltage
Input Leakage Test
Min
2.5
2.0
IIH Input HIGH Current
IBVI
IBVIT
IIL
Input HIGH Current
Breakdown Test
Input HIGH Current
Breakdown Test (I/O)
Input LOW Current
IIH + IOZH Output Leakage Current
IIL + IOZL Output Leakage Current
IOS
ICEX
IZZ
ICCH
ICCL
ICCZ
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
ICCT
Additional ICC/Input
ICCD
Dynamic ICC
(Note 4)
No Load
Note 4: Guaranteed but not tested.
Typ
Max
Units
VCC
Conditions
V Recognized HIGH Signal
0.8 V
Recognized LOW Signal
−1.2 V Min IIN = −18 mA (Non I/O Pins)
V Min IOH = −3 mA, (An, Bn)
IOH = −32 mA, (An, Bn)
0.55 V Min IOL = 64 mA, (An, Bn)
V 0.0 IID = 1.9 µA, (Non-I/O Pins)
All Other Pins Grounded
1 µA Max VIN = 2.7V (Non-I/O Pins) (Note 4)
1 VIN = VCC (Non-I/O Pins)
7 µA Max VIN = 7.0V (Non-I/O Pins)
100 µA Max VIN = 5.5V (An, Bn)
−1
−1
10
−10
−275
50
100
1.0
60
1.0
2.5
0.23
µA Max VIN = 0.5V (Non-I/O Pins) (Note 4)
VIN = 0.0V (Non-I/O Pins)
µA 0V–5.5V VOUT = 2.7V (An, Bn);
OEABn = GND and OEBAn = 2.0V
µA 0V–5.5V VOUT = 0.5V (An, Bn);
OEABn = GND and OEBAn = 2.0V
mA Max VOUT = 0V (An, Bn)
µA Max VOUT = VCC (An, Bn)
µA 0.0V VOUT = 5.5V (An, Bn); All Others GND
mA Max All Outputs HIGH
mA Max All Outputs LOW
mA Max Outputs 3-STATE;
All Others at VCC or GND
mA Max VI = VCC − 2.1V
All Others at VCC or GND
mA/MHz Max Outputs Open
OEABn, OEBAn and SEL = GND
Non-I/O = GND or VCC
One bit toggling, 50% duty cycle
www.fairchildsemi.com
4
4페이지 Capacitance
Symbol
Parameter
Typ
CIN Input Capacitance
5.0
CI/O (Note 17)
I/O Capacitance
11.0
Note 17: CI/O is measured at frequency, f = 1 MHz, per MIL-STD-883, Method 3012.
AC Loading
Units
pF
pF
Conditions
(TA = 25°C)
VCC = 0V (non I/O pins)
VCC = 5.0V (An, Bn)
*Includes jig and probe capacitance
FIGURE 2. Standard AC Test Load
FIGURE 3. Test Input Signal Levels
Input Pulse Requirement
Amplitude Rep. Rate
tW
3.0V
1 MHz 500 ns
tr
2.5 ns
tf
2.5 ns
FIGURE 4. Test input Signal Requirements
AC Waveforms
FIGURE 5. Propagation Delay Waveforms for Inverting
and Non-Inverting Functions
FIGURE 7. 3-STATE Output HIGH
and LOW Enable and Disable Times
FIGURE 6. Propagation Delay,
Pulse Width Waveforms
FIGURE 8. Setup Time, Hold Time
and Recovery Time Waveforms
7 www.fairchildsemi.com
7페이지 | |||
구 성 | 총 9 페이지수 | ||
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74ABT16652 | 16-Bit Transceivers and Registers with 3-STATE Outputs | Fairchild Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |