ADUC7122 Analog Devices, ADUC7122 Datasheet - Page 9

• Manufacturer Part Number: ADUC7122
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
• Manufacturer: Analog Devices

Specifications of ADUC7122

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 32
• Adc # Channels: 13

TIMING SPECIFICATIONS
Table 2. I
Parameter
t
t
t
t
t
t
t
t
t
t
Table 3. I
Parameter
t
t
t
t
t
t
t
t
t
t
L
H
SHD
DSU
DHD
RSU
PSU
BUF
R
F
L
H
SHD
DSU
DHD
RSU
PSU
BUF
R
F
2
2
SDAx
SCLx
C Timing in Fast Mode (400 kHz)
C Timing in Standard Mode (100 kHz)
t
PSU
Description
SCLx low pulse width
SCLx high pulse width
Start condition hold time
Data setup time
Data hold time
Setup time for repeated start
Stop condition setup time
Bus-free time between a stop condition and a start condition
Rise time for both SCLx and SDAx
Fall time for both SCLx and SDAx
CONDITION
Description
SCLx low pulse width
SCLx high pulse width
Start condition hold time
Data setup time
Data hold time
Setup time for repeated start
Stop condition setup time
Bus-free time between a stop condition and a start condition
Rise time for both SCLx and SDAx
Fall time for both SCLx and SDAx
STOP
P
t
BUF
CONDITION
START
S
t
DSU
t
SHD
MSB
1
Figure 2. I
t
DHD
2–7
2
C-Compatible Interface Timing
Rev. 0 | Page 9 of 96
t
t
H
L
LSB
8
t
SUP
t
DSU
t
Min
200
100
300
100
0
100
100
1.3
Min
4.7
4.0
4.0
250
0
4.7
4.0
4.7
SUP
ACK
9
t
Slave
RSU
Typ
t
DHD
REPEATED
START
Max
300
300
Typ
S(R)
Slave
Min
t
F
MSB
t
Master
F
Typ
1360
1140
740
400
800
200
Max
3.45
1
300
1
t
R
t
R
ADuC7122
Max
Unit
ns
ns
ns
ns
ns
ns
ns
μs
ns
ns
Unit
μs
ns
μs
ns
μs
μs
μs
μs
μs
ns