Bus Switch. TC7MBD3244AFK Datasheet

TC7MBD3244AFK Switch. Datasheet pdf. Equivalent

TC7MBD3244AFK Datasheet
Recommendation TC7MBD3244AFK Datasheet
Part TC7MBD3244AFK
Description Octal Bus Switch
Feature TC7MBD3244AFK; TC7MBD3244AFK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MBD3244AFK Octal Bus Swi.
Manufacture Toshiba
Datasheet
Download TC7MBD3244AFK Datasheet




Toshiba TC7MBD3244AFK
TC7MBD3244AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MBD3244AFK
Octal Bus Switch
The TC7MBD3244AFK provides eight bits of high-speed
TTL-compatible bus switching in a standard ’244 device pinout.
The low on resistance of the switch allows connections to be made
with minimal propagation delay.
The device is organized as two 4-bit low-impedance switches
with separate output-enable (OE) inputs. When OE is low, the
switch is on and data can flow from port A to port B, or vice versa.
When OE is high, the switch is open and a high-impedance state
exists between the two ports.
The device is enable to realize the shift of signal level from 5 V
to 3.3 V.
All inputs are equipped with protection circuits against static
discharge.
Weight: 0.03 g (typ.)
Features
Operating voltage: VCC = 4.5 to 5.5 V
High speed: tpd = 0.32 ns (max.)
Low on resistance: RON = 5 (typ.)
ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
Compatible with TTL outputs (control inputs)
Low Power Dissipation: ICC = 10 μA (max.)
Package: VSSOP (US20)
Pin compatible with the 74xx244 type.
Functionally equivalent to (FST/CBT) 3244.
Pin Assignment (top view)
1OE 1
1A1 2
2B4 3
1A2 4
2B3 5
1A3 6
2B2 7
1A4 8
2B1 9
GND 10
(top view)
20 VCC
19 2OE
18 1B1
17 2A4
16 1B2
15 2A3
14 1B3
13 2A2
12 1B4
11 2A1
Start of commercial production
2002-06
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Toshiba TC7MBD3244AFK
Truth Table
Inputs
OE
L
H
Function
A port = B port
Disconnect
System Diagram
1A1
1B1
2A1
TC7MBD3244AFK
2B1
1A4
1B4
2A4
2B4
1OE
2OE
Absolute Maximum Ratings (Note)
Characteristics
Symbol
Rating
Unit
Power supply range
DC input voltage
DC switch voltage
Input diode current
Continuous channel circuit
Power dissipation
DC VCC/ground current
Storage temperature
VCC
0.5 to 7.0
V
VIN
0.5 to 7.0
V
VS
0.5 to 7.0
V
IIK
50
mA
IS
128
mA
PD
180
mW
ICC/IGND
±100
mA
Tstg
65 to 150
°C
Note: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even
destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Operating Ranges (Note)
Characteristics
Symbol
Rating
Unit
Supply voltage
Input voltage
Switch voltage
Operating temperature
Input rise and fall time
VCC
VIN
VS
Topr
dt/dv
4.5 to 5.5
0 to 5.5
0 to 5.5
40 to 85
0 to 10
V
V
V
°C
ns/V
Note: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
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Toshiba TC7MBD3244AFK
TC7MBD3244AFK
Electrical Characteristics
DC Characteristics (Ta = −40 to 85°C)
Characteristics
“H” level
Input voltage
“L” level
Symbol
VIH
VIL
Test Condition
High-level output voltage
IOH=-1μA
VOH
(Note 2)
VIS = VCC
Input leakage current
Power off leakage current
Off-STATE leakage current
(switch off)
IIN
IOFF
VIN = 0 to 5.5 V
A, B, OE = 0 to 5.5 V
ISZ A, B = 0~5.5 V, OE = VCC
ON resistance
(Note 3)
RON
VIS = 0 V
IIS = 64 mA
IIS = 30 mA
Quiescent supply current
Increase in ICC per input
VIS = 2.3 V, IIS = 15 mA
ICC
ΔICC
VIN = VCC or GND, IOUT = 0
VIN = 3.4 V (one input)
VCC (V)
Min
Typ.
(Note 1)
Max
Unit
4.5 to 5.5 2.0
V
4.5 to 5.5
0.8
4.75
2.3
2.8
3.2
5.0
2.5
3.0
3.4
V
5.25
2.7
3.2
3.6
4.5 to 5.5
±1.0 μA
0
±1.0 μA
4.5 to 5.5
±1.0 μA
4.5
5
9
4.75
5
8
4.5
5
9
Ω
4.75
5
8
4.5
35
65
4.75
35
50
5.5
10 μA
5.5
2.5 mA
Note 1: Typical values are at VCC = 5 V, Ta = 25°C.
Note 2: It recommends that this device uses Pull-up resistance when adding and using resistance for
an output terminal. Since it couses to drop a VOH voltage level when using Pull-down resistance
for an output terminal.
Note 3: Measured by the voltage drop between A and B pins at the indicated current through the switch. On
resistance is determined by the lower of the voltages on the two (A or B) pins.
AC Characteristics (Ta = −40~85°C)
Characteristics
Propagation delay time
(bus to bus)
Output enable time
Output disable time
Symbol
Test Condition
tpLH
tpHL
tpZL
tpZH
tpLZ
tpHZ
Figure 1, Figure 2
Figure 1, Figure 3
Figure 1, Figure 3
Min Max Unit
VCC (V)
(Note) 4.5
0.32 ns
4.5
7.0
ns
4.5
7.0
ns
Note: The propagation delay time is calculated by the RC (on-resistance and load capacitance) time constant.
Capacitive Characteristics (Ta = 25°C)
Characteristics
Symbol
Control pin input capacitance
Switch terminal capacitance
CIN
CI/O
OE = VCC
Note: This parameter is guaranteed by design.
Test Condition
Typ. Unit
VCC (V)
(Note) 5.0
3
pF
(Note) 5.0
10
pF
3
2014-03-01







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