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PDF 74VCX16501 Data sheet ( Hoja de datos )
| Número de pieza | 74VCX16501 | |
| Descripción | Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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March 1998
Revised April 1999
74VCX16501
Low Voltage 18-Bit Universal Bus Transceivers with 3.6V
Tolerant Inputs and Outputs
General Description
Features
The VCX16501 is an 18-bit universal bus transceiver which
combines D-type latches and D-type flip-flops to allow data
flow in transparent, latched, and clocked modes.
Data flow in each direction is controlled by output-enable
(OEAB and OEBA), latch-enable (LEAB and LEBA), and
s 1.65V–3.6V VCC supply operation
s 3.6V tolerant inputs and outputs
s tPD (A to B, B to A)
2.9 ns max for 3.0V to 3.6V VCC
clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the
device operates in the transparent mode when LEAB is
HIGH. When LEAB is LOW, the A data is latched if CLKAB
is held at a HIGH or LOW logic level. If LEAB is LOW, the A
3.5 ns max for 2.3V to 2.7V VCC
7.0 ns max for 1.65V to 1.95V VCC
s Power-down high impedance inputs and outputs
bus data is stored in the latch/flip-flop on the LOW-to-HIGH
transition of CLKAB. When OEAB is HIGH, the outputs are
active. When OEAB is LOW, the outputs are in a high-
impedance state.
s Supports live insertion/withdrawal (Note 1)
s Static Drive (IOH/IOL)
±24 mA @ 3.0V VCC
Data flow for B to A is similar to that of A to B but uses
±18 mA @ 2.3V VCC
OEBA, LEBA, and CLKBA. The output enables are com-
plementary (OEAB is active HIGH and OEBA is active
LOW).
±6 mA @ 1.65V VCC
s Uses patented noise/EMI reduction circuitry
The VCX16501 is designed for low voltage (1.65V to 3.6V) s Latchup performance exceeds 300 mA
VCC applications with I/O capability up to 3.6V.
s ESD performance:
www.DataSheet4U.com
The VCX16501 is fabricated with an advanced CMOS
Human body model > 2000V
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Machine model >200V
Note 1: To ensure the high-impedance state during power up or power
down, OEBA should be tied to VCC through a pull-up resistor and OEAB
should be tied to GND through a pull-down resistor; the minimum value of
the resistors is determined by the current-sourcing capability of the driver.
Ordering Code:
Order Number Package Number
Package Description
74VCX16501MTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
© 1999 Fairchild Semiconductor Corporation DS500125.prf
www.fairchildsemi.com
1 page  
DC Electrical Characteristics (2.3V ≤ VCC ≤ 2.7V)
Symbol
Parameter
VIH HIGH Level Input Voltage
VIL LOW Level Input Voltage
VOH HIGH Level Output Voltage
VOL LOW Level Output Voltage
II Input Leakage Current
IOZ 3-STATE Output Leakage
IOFF Power Off Leakage Current
ICC Quiescent Supply Current
Note 9: Outputs disabled or 3-STATE only.
Conditions
IOH = −100 µA
IOH = −6 mA
IOH = −12 mA
IOH = −18 mA
IOL = 100 µA
IOL = 12 mA
IOL = 18 mA
0 ≤ VI ≤ 3.6V
0 ≤ VO ≤ 3.6V
VI = VIH or VIL
0 ≤ (VI, VO) ≤ 3.6V
VI = VCC or GND
VCC ≤ (VI, VO) ≤ 3.6V (Note 9)
VCC
(V)
2.3 − 2.7
2.3 − 2.7
2.3 − 2.7
2.3
2.3
2.3
2.3 − 2.7
2.3
2.3
2.3 − 2.7
Min Max
1.6
VCC − 0.2
2.0
1.8
1.7
0.7
0.2
0.4
0.6
±5.0
2.3 − 2.7
±10
0
2.3 − 2.7
2.3 − 2.7
10
20
±20
DC Electrical Characteristics (1.65V ≤ VCC < 2.3V)
Symbol
Parameter
VIH HIGH Level Input Voltage
VIL LOW Level Input Voltage
VOH HIGH Level Output Voltage
VOL LOW Level Output Voltage
II Input Leakage Current
IOZ 3-STATE Output Leakage
IOFF Power Off Leakage Current
ICC Quiescent Supply Current
Note 10: Outputs disabled or 3-STATE only.
Conditions
IOH = −100 µA
IOH = −6 mA
IOL = 100 µA
IOL = 6 mA
0 ≤ VI ≤ 3.6V
0 ≤ VO ≤ 3.6V
VI = VIH or VIL
0 ≤ (VI, VO) ≤ 3.6V
VI = VCC or GND
VCC ≤ (VI, VO) ≤ 3.6V (Note 10)
VCC
(V)
1.65 - 2.3
1.65 - 2.3
1.65 - 2.3
1.65
1.65 - 2.3
1.65
1.65 - 2.3
Min Max
0.65 × VCC
VCC − 0.2
1.25
0.35 × VCC
0.2
0.3
±5.0
1.65 - 2.3
±10
0
1.65 - 2.3
1.65 - 2.3
10
20
±20
Units
V
V
V
V
µA
µA
µA
µA
Units
V
V
V
V
µA
µA
µA
µA
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 74VCX16501.PDF ] | |
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