ADUC831BS Analog Devices Inc, ADUC831BS Datasheet - Page 70

• Manufacturer Part Number: ADUC831BS
• Description: IC ADC/DAC 12BIT W/MCU 52-MQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC8xxr

Specifications of ADUC831BS

• Rohs Status: RoHS non-compliant
• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: PSM, Temp Sensor, WDT
• Number Of I /o: 34
• Program Memory Size: 62KB (62K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 52-MQFP, 52-PQFP
• For Use With: EVAL-ADUC831QSZ - KIT DEV FOR ADUC831 QUICK START

Parameter
UART TIMING (Shift Register Mode)
t
t
t
t
t
ADuC831
XLXL
QVXH
DVXH
XHDX
XHQX
(OUTPUT CLOCK)
Serial Port Clock Cycle Time
Output Data Setup to Clock
Input Data Setup to Clock
Input Data Hold after Clock
Output Data Hold after Clock
(OUTPUT DATA)
(INPUT DATA)
ALE (O)
RxD
RxD
TxD
Figure 73. UART Timing in Shift Register Mode
MSB
0
MSB
t
DVXH
t
BIT 6
QVXH
Min
700
300
0
50
1
BIT 6
12 MHz
Typ
1.0
–70–
t
t
XHQX
XHDX
Max
Min
10t
2t
0
2t
CK
CK
BIT 1
CK
6
+ 133
– 117
BIT 1
t
– 133
XLXL
Variable Clock
Typ
12t
CK
LSB
7
SET RI
SET TI
LSB
OR
Max
Unit
µs
ns
ns
ns
ns
Figure
73
73
73
73
73
REV. 0