ADUC847BCP8-5 AD [Analog Devices], ADUC847BCP8-5 Datasheet - Page 11

• Manufacturer Part Number: ADUC847BCP8-5
• Description: MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
• Manufacturer: AD [Analog Devices]

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
P1.2/AIN3/REFIN2+
P1.3/AIN4/REFIN2–
Table 3. Pin Function Descriptions
Pin No:
52-MQFP
1
2
3
4
5
6
---
Footnotes at end of table.
P1.6/AIN7/IEXC1
P1.7/AIN8/IEXC2
AINCOM/DAC
P1.0/AIN1
P1.1/AIN2
P1.4/AIN5
P1.5/AIN6
REFIN–
REFIN+
AGND
AV
DD
Pin No:
56-CSP
56
1
2
3
4
5
6
10
11
12
13
Figure 2. 52-Lead MQFP Pin Configuration
1
2
3
4
5
6
7
8
9
14 15 16 17 18 19 20 21 22 23 24 25 26
52 51 50 49 48
ADuC845/ADuC847/ADuC848
PIN 1
IDENTIFIER
Mnemonic
P1.0/AIN1
P1.1/AIN2
P1.2/AIN3/REFIN2+
P1.3/AIN4/REFIN2−
AV
AGND
AGND
(Not to Scale)
DD
TOP VIEW
47 46 45 44
43 42 41 40
39
38
37
36
35
34
33
32
31
30
29
28
27
Type
I
I
I
I
S
S
S
P2.7/PWMCLK
P2.6/PWM1
P2.5/PWM0
P2.4/T2EX
DGND
P2.3/SS/T2
P2.2/MISO
P2.1/MOSI
P2.0/SCLOCK (SPI)
SDATA
DV
XTAL2
XTAL1
DD
1
Description
By power-on default, P1.0/AIN1 is configured as the AIN1 analog input.
AIN1 can be used as a pseudo differential input when used with AINCOM or as
the positive input of a fully differential pair when used with AIN2.
P1.0 has no digital output driver. It can function as a digital input for which 0
must be written to the port bit. As a digital input, this pin must be driven high or
low externally.
On power-on default, P1.1/AIN2 is configured as the AIN2 analog input.
AIN2 can be used as a pseudo differential input when used with AINCOM or as
the negative input of a fully differential pair when used with AIN1.
P1.1 has no digital output driver. It can function as a digital input for which 0
must be written to the port bit. As a digital input, this pin must be driven high or
low externally.
On power-on default, P1.2/AIN3 is configured as the AIN3 analog input.
AIN3 can be used as a pseudo differential input when used with AINCOM or as
the positive input of a fully differential pair when used with AIN4.
P1.2 has no digital output driver. It can function as a digital input for which 0
must be written to the port bit. As a digital input, this pin must be driven high or
low externally. This pin also functions as a second external differential reference
input, positive terminal.
On power-on default, P1.3/AIN4 is configured as the AIN4 analog input.
AIN4 can be used as a pseudo differential input when used with AINCOM or as
the negative input of a fully differential pair when used with AIN3.
P1.3 has no digital output driver. It can function as a digital input for which 0
must be written to the port bit. As a digital input, this pin must be driven high or
low externally. This pin also functions as a second external differential reference
input, negative terminal.
Analog Supply Voltage.
Analog Ground.
A second analog ground is provided with the CSP version only.
Rev. A | Page 11 of 108
P1.2/AIN3/REFIN2+
P1.3/AIN4/REFIN2–
P1.6/AIN7/IEXC1
P1.7/AIN8/IEXC2
AINCOM/DAC
P1.1/AIN2
P1.4/AIN5
P1.5/AIN6
REFIN–
REFIN+
AGND
AGND
AV
DAC
DD
Figure 3. 56-Lead CSP Pin Configuration
10
11
12
13
14
1
2
3
4
5
6
7
8
9
ADuC845/ADuC847/ADuC848
PIN 1
IDENTIFIER
ADuC845/ADuC847/ADuC848
(Not to Scale)
TOP VIEW
42
41
40
39
38
37
36
35
34
33
32
31
30
29
P2.4/T2EX
DGND
P2.7/PWMCLK
P2.6/PWM1
P2.5/PWM0
DGND
DV
XTAL2
XTAL1
P2.3/SS/T2
P2.2/MISO
P2.1/MOSI
P2.0/SCLOCK (SPI)
SDATA
DD