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TCA8418E Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce TCA8418E
Description  I2C CONTROLLED KEYPAD SCAN IC WITH INTEGRATED ESD PROTECTION
Download  35 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TCA8418E Fiches technique(HTML) 5 Page - Texas Instruments

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TCA8418E
www.ti.com
SCPS222B – MAY 2010 – REVISED SEPTEMBER 2010
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, VCC = 1.65 V to 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCCP
MIN
TYP
MAX
UNIT
VIK
Input diode clamp voltage
II = –18 mA
1.65 V to 3.6 V
–1.2
V
VPOR Power-on reset voltage
VI = VCCP or GND, IO = 0
1.65 V to 3.6 V
1
1.4
V
IOH = –1 mA
1.65 V
1.25
1.65 V
1.2
IOH = –8 mA
2.3 V
1.8
ROW0–7, COL0–9 high-level
VOH
3 V
2.6
V
output voltage
1.65 V
1.1
IOH = –10 mA
2.3 V
1.7
3 V
2.5
IOL = 1 mA
1.65 V
0.4
1.65 V
0.45
IOL = 8 mA
2.3 V
0.25
ROW0–7, COL0–9 low-level
VOL
3 V
0.25
V
output voltage
1.65 V
0.6
IOL = 10 mA
2.3 V
0.3
3 V
0.25
SDA
VOL = 0.4 V
1.65 V to 3.6 V
3
IOL
mA
INT and CAD_INT
VOL = 0.4 V
1.65 V to 3.6 V
3
SCL, SDA, ROW0–7, COL0–9,
II
VI = VCCI or GND
1.65 V to 3.6 V
1
mA
RESET
rINT
ROW0–7, COL0–9
55
k
Oscillator
13
OFF
fSCL = 0 kHz
1.65 V to 3.6 V
Oscillator
18
ON
1.65 V
15
fSCL = 400 kHz
3.6 V
30
VI on SDA,
1 key press
1.65 V
15
ROW0–7,
fSCL = 1 MHz
COL0–9 = VCC or
3.6 V
40
ICC
mA
GND,
fSCL = 400 kHz
GPI low
115
IO = 0, I/O =
(pullup
inputs,
fSCL = 1 MHz
125
enable)(1)
fSCL = 400 kHz
GPI low
25
1.65 V to 3.6 V
(pullup
fSCL = 1 MHz
35
disable)
fSCL = 400 kHz
115
1 GPO
active
fSCL = 1 MHz
125
CI
SCL
VI = VCCI or GND
1.65 V to 3.6 V
6
8
pF
SDA
10
12.5
Cio
VIO = VCC or GND
1.65 V to 3.6 V
pF
ROW0–7, COL0–9
5
6
(1)
Assumes that one GPIO is enabled.
Copyright © 2010, Texas Instruments Incorporated
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