74VCX163245
16-BIT DUAL SUPPLY BUS TRANSCEIVER LEVEL TRANSLATOR
TARGET DATA
■HIGH SPEED: tPD = 4.4ns (MAX.) at TA=85°C VCCA = 3.0V VCCB = 2.3V
■LOW POWER DISSIPATION:
ICCA = ICCB = 20μA(MAX.) at TA=85°C
■SYMMETRICAL OUTPUT IMPEDANCE:
|IOHA| = IOLA = 12mA MIN at
VCCA = 3.0V VCCB = 1.65V or 2.3V |IOHA| = IOLA = 8mA MIN at
VCCA = 2.3V VCCB = 1.65V)
■BALANCED PROPAGATION DELAYS: tPLH tPHL
■POWER DOWN PROTECTION ON INPUTS AND OUTPUTS
■OPERATING VOLTAGE RANGE:
VCCA(OPR)= 2.3V to 3.6V (1.2V Data Retention) VCCB(OPR)=1.65Vto2.7V(1.2VDataRetention)
■PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 16245
■LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17)
■ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015); MM > 200V
DESCRIPTION
The 74VCX163245 is a dual supply low voltage CMOS 16-BIT BUS TRANSCEIVER fabricated with sub-micron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3V bus and a 2.5V or 1.8V bus in a mixed 3.3V/1.8V,3.3V/2.5V and 2.5V/ 1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation.
This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nOE can be used to disable the device so that the buses are effectively isolated. The A-port interfaces with the 3V bus, the B-port with the 2.5V and 1.8V bus.
All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. All floating bus terminals during High Z State must be held HIGH or LOW.
TSSOP |
TFBGA |
μTFBGA |
ORDER CODES
PACKAGE |
TRAY |
T & R |
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TSSOP48 |
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74VCX163245TTR |
TFBGA54 74VCX163245LB 74VCX163245LBR
μTFBGA42 74VCX163245TB 74VCX163245TBR
LOGIC DIAGRAM
June 2003 |
1/15 |
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
74VCX163245
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TFBGA54 PIN No |
μTFBGA42 PIN No |
TSSOP PIN No |
SYMBOL |
NAME AND FUNCTION |
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A3 |
B3 |
1 |
1DIR |
Directional Controls |
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J3 |
F3 |
24 |
2DIR |
Directional Controls |
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A6, B5, B6, C5, |
A4, A5, A6, B5, |
47, 46, 44, 43, |
1A1 to 1A8 |
Data Inputs/Outputs |
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C6, D5, D6, E5 |
B6, C5, C6, D5 |
41, 40, 38, 37 |
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E6, F5, F6, G5, |
D6, E5, E6, F5, |
36, 35, 33, 32, |
2A1 to 2A8 |
Data Inputs/Outputs |
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G6, H5, H6, J6 |
F6,G4, G5, G6 |
30, 29, 27, 26 |
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A1, B2, B1, C2, |
A3, A2, A1, B2, |
2, 3, 5, 6, |
1B1 to 1B8 |
Data Inputs/Outputs |
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C1, D2, D1, E2 |
B1, C2, C1, D2 |
8, 9, 11, 12 |
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E1, F2, F1, G2, |
D1, E2, E1, F2, |
13, 14, 16, 17, |
2B1 to 2B8 |
Data Inputs/Outputs |
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G1, H2, H1, J1 |
F1,G3, G2, G1 |
19, 20, 22, 23 |
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J4 |
F4 |
25 |
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G2 |
Output Enable Inputs |
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A4 |
B4 |
48 |
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G1 |
Output Enable Inputs |
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D3, D4, E3, E4, |
C3, C4, E3, E4 |
4,10,15, 21, |
GND |
Ground (0V) |
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F3, F4 |
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28, 34, 39, 45 |
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A2, A5, B3, B4, |
- |
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NC |
No Connected |
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H3, H4, J2, J5 |
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C4, G4 |
D4 |
42, 31 |
VCCA |
Positive Supply Voltage |
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C3, G3 |
D3 |
7, 18 |
VCCB |
Positive Supply Voltage |
2/15
74VCX163245
PIN CONNECTION (top view for TSSOP, bottom view for BGA)
TSSOP |
TFBGA |
μTFBGA
TRUTH TABLE
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INPUTS |
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FUNCTION |
OUTPUT |
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G |
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DIR |
A BUS |
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B BUS |
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L |
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L |
OUTPUT |
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INPUT |
A = B |
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L |
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H |
INPUT |
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OUTPUT |
B = A |
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H |
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X |
Z |
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Z |
Z |
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X=Don’t care; Z=High Impedance
3/15
74VCX163245
ABSOLUTE MAXIMUM RATINGS
Symbol |
Parameter |
Value |
Unit |
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VCCA |
Supply Voltage |
-0.5 to +4.6 |
V |
VCCB |
Supply Voltage |
-0.5 to +4.6 |
V |
VI |
DC Input Voltage |
-0.5 to +4.6 |
V |
VI/OA |
DC I/O Voltage (Output disabled) |
-0.5 to +4.6 |
V |
VI/OB |
DC I/O Voltage (Output disabled) |
-0.5 to +4.6 |
V |
VI/OA |
DC I/O Voltage |
-0.5 to VCCA + 0.5 |
V |
VI/OB |
DC I/O Voltage |
-0.5 to VCCB + 0.5 |
V |
IIK |
DC Input Diode Current |
− 20 |
mA |
IOK |
DC Output Diode Current |
− 50 |
mA |
IOA |
DC Output Current |
± 50 |
mA |
IOB |
DC Output Current |
± 50 |
mA |
ICCA |
DC VCC or Ground Current |
± 100 |
mA |
ICCB |
DC VCC or Ground Current |
± 100 |
mA |
Pd |
Power Dissipation |
400 |
mW |
Tstg |
Storage Temperature |
-65 to +150 |
°C |
TL |
Lead Temperature (10 sec) |
300 |
°C |
Absolute Maximum Rating are those value beyond which damage to the device may occur. Functional operation under these condition is not implied
(*) 500mW: 65°C derated to 300mW by 10mW/°C: 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
Symbol |
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Value |
Unit |
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VCCA |
Supply Voltage |
2.3 to 3.6 |
V |
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VCCB |
Supply Voltage |
1.65 to 2.7 |
V |
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VI |
Input Voltage (Dir, |
OE) |
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0 to VCCB |
V |
VI/OA |
I/O Voltage |
0 to VCCA |
V |
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VI/OB |
I/O Voltage |
0 to VCCB |
V |
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Top |
Operating Temperature |
-40 to 85 |
°C |
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dt/dv |
Input Rise and Fall Time (note 1) |
0 to 10 |
ns/V |
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1) VIN from 0.8V to 2.0V at VCC =3.0V
4/15
74VCX163245
DC SPECIFICATION FOR VCCA
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Test Condition |
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Value |
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Symbol |
Parameter |
VCCB |
VCCA |
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TA = 25 °C |
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-40 to 85 °C |
Unit |
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(*) |
(*) |
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(V) |
(V) |
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Min. |
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Typ. |
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Max. |
Min. |
Max. |
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VIHA |
High Level Input |
1.8 |
2.5 |
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1.6 |
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1.6 |
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Voltage (An) |
1.8 |
3.3 |
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2.0 |
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2.0 |
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V |
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2.5 |
3.3 |
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2.0 |
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2.0 |
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VILA |
Low Level Input |
1.8 |
2.5 |
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0.7 |
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0.7 |
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Voltage (An) |
1.8 |
3.3 |
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0.8 |
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0.8 |
V |
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2.5 |
3.3 |
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0.8 |
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0.8 |
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VOHA |
High Level |
2.3 |
3.0 |
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IO=-100 μA |
2.8 |
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2.8 |
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Output Voltage |
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2.3 |
3.0 |
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IO=-24 mA |
2.2 |
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2.2 |
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V |
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1.65 |
3.0 |
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IO=-24 mA |
2.2 |
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2.2 |
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1.65 |
2.3 |
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IO=-18 mA |
1.7 |
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1.7 |
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VOLA |
Low Level |
2.3 |
3.0 |
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IO=100 μA |
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0.2 |
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0.2 |
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Output Voltage |
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2.3 |
3.0 |
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IO=24 mA |
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0.55 |
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0.55 |
V |
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1.65 |
3.0 |
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IO=24 mA |
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0.55 |
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0.55 |
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1.65 |
2.3 |
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IO=18 mA |
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0.60 |
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0.60 |
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IIA |
Input Leakage |
2.7 |
3.6 |
VI = VCC or GND |
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± 0.5 |
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± 5 |
μA |
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Current |
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IOZA |
High Impedance |
2.7 |
3.6 |
VIA = Gnd or 3.6V |
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± 1.0 |
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± 10 |
μA |
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Output Leakage |
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VIB = VIHB or VILB |
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Current |
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OE = VCCB |
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IIA(HOLD) |
Input Hold |
1.65 |
2.3 |
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VI = 0.57V |
25 |
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25 |
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μA |
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Current |
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1.65 |
2.3 |
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VI = 1.07V |
-25 |
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-25 |
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1.65 |
3.0 |
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VI = 0.57V |
25 |
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25 |
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μA |
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1.65 |
3.0 |
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VI = 1.07V |
-25 |
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-25 |
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2.3 |
3.0 |
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VI = 0.7V |
45 |
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45 |
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μA |
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2.3 |
3.0 |
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VI = 1.6V |
-45 |
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-45 |
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2.7 |
3.6 |
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VIB = 0 to 2.7V |
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± 300 |
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IOFF |
Power Off |
0 |
0 |
VIA = Gnd to 3.6V |
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± 1.0 |
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± 10 |
μA |
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Leakage Current |
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VIB = Gnd to 3.6V |
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G, Dir = GND to |
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3.6V |
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ICCtA |
Quiescent |
1.95 |
3.6 |
VIA =VCCA or GND |
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2 |
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20 |
μA |
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Supply Current |
1.95 |
2.7 |
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VIB =VCCB or GND |
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2.7 |
3.6 |
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ICCtA |
Maximum |
2.7 |
3.6 |
VIA =VCCA - 0.6V |
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0.75 |
mA |
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Quiescent |
1.95 |
3.6 |
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Supply Current / |
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VIB =VCCB or GND |
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1.95 |
2.7 |
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Input (An) |
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5/15