MB88346B

Manufacturer Part NumberMB88346B
ManufacturerFujitsu
MB88346B datasheet
 


1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
Page 4/20:

PIN DESCRIPTION

Download datasheet (210Kb)Embed
PrevNext
MB88346B

PIN DESCRIPTION

PIN ASSIGNMENT and Tableshow the pin assignment and pin description of the MB88346B.
Symbol
Pin No.
Type
Power Supply
V
11
-
CC
GND
20
-
V
10
-
DD
V
1
-
SS
Control Input
CLK
16
I
LD
15
I
Data Input/Output
D
17
I
I
D
14
O
O
DAC Output
AO1
18
AO2
19
AO3
2
AO4
3
AO5
4
AO6
5
O
AO7
6
AO8
7
AO9
8
AO10
9
AO11
12
AO12
13
4
Table 1 Pin Description
Name & Function
+5V DC power supply pin for the digital block (MCU interface) and operational
amplifier output buffers.
Ground pin for the digital block (MCU interface) and operational amplifier out-
put buffers.
DC power supply pin for the analog block (D/A converter) except operational
amplifier output buffers.
Ground pin for the analog block (D/A converter) except operational amplifier
output buffers.
Shift clock input to the internal 12-bit shift register: At the rising edge of CLK
data on the DI pin is shifted into the LSB of the shift register and contents of
the shift register are shifted right (to the MSB).
Load strobe input for a 12-bit address/data : A high level on the LD pin latches
a 4-bit address (upper 4 bits: D11 to D8) of the internal 12-bit shift register into
the internal address decoder, and writes 8-bit data (lower 8 bits: D7 to D0) of
the shift register into an internal data latch selected by the latched address.
Serial address/data input to the internal 12-bit shift register: The address/
data format is that upper 4 bits (D11 to D8) indicate an address and lower 8
bits (D7 to D0) indicate data. The D11 (MSB) is the first-in bit and D0 (LSB) is
the last-in bit.
Serial address/data output from the internal 12-bit shift register: This is an
output pin of the MSB bit data of the 12-bit shift register. This pin allows a
cascade connection of the device.
8-bit resolution D/A converter outputs : 12 channels of DAC outputs (AO1 to
AO12) are provided.
Each output channel has an operational amplifier output buffer for analog out-
put data.