AD7879-1ACPZ-500R7 Analog Devices Inc, AD7879-1ACPZ-500R7 Datasheet - Page 5

• Manufacturer Part Number: AD7879-1ACPZ-500R7
• Description: Touch Screen Controller
• Manufacturer: Analog Devices Inc
• Type: Resistiver

Specifications of AD7879-1ACPZ-500R7

• Touch Panel Interface: 4-Wire
• Number Of Inputs/keys: 1 TSC
• Resolution (bits): 12 b
• Data Interface: I²C, Serial
• Data Rate/sampling Rate (sps, Bps): 105k
• Voltage Reference: External
• Voltage - Supply: 1.6 V ~ 3.6 V
• Current - Supply: 10nA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-LFCSP-VQ
• Voltage Supply Source: Single Supply
• Sampling Rate (per Second): 105k
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AD7879-1ACPZ-500R7TR

I
V
timed from a voltage level of 1.4 V.
Table 3.
Parameter
f
t
t
t
t
t
t
t
t
t
t
1
SCL
2
1
2
3
4
5
6
7
8
R
F
Guaranteed by design; not production tested.
C TIMING SPECIFICATIONS (AD7879-1/AD7889-1)
CC
= 1.6 V to 3.6 V, T
1
SDA
SCL
STOP START
t
8
A
Limit
400
0.6
1.3
0.6
100
300
0.6
0.6
1.3
300
300
= −40°C to +85°C, unless otherwise noted. Sample tested at 25°C to ensure compliance. All input signals are
t
t
1
2
Unit
kHz max
µs min
µs min
µs min
ns min
ns min
µs min
µs min
µs min
ns max
ns max
t
5
t
R
Figure 3. Detailed I
t
F
Description
Start condition hold time, t
Clock low period, t
Clock high period, t
Data setup time, t
Data hold time, t
Stop condition setup time, t
Start condition setup time, t
Bus-free time between stop and start conditions, t
Clock/data rise time
Clock/data fall time
t
3
Rev. C | Page 5 of 40
t
4
2
C Timing Diagram
HD; DAT
SU; DAT
LOW
HIGH
START
HD; STA
SU; STO
SU; STA
t
7
t
1
BUF
AD7879/AD7889
t
6
STOP