DS87C550-QNL Maxim Integrated Products, DS87C550-QNL Datasheet - Page 36

• Manufacturer Part Number: DS87C550-QNL
• Description: IC MCU EPROM ADC/PWM HS 68-PLCC
• Manufacturer: Maxim Integrated Products
• Series: 87Cr

Specifications of DS87C550-QNL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, PWM, WDT
• Number Of I /o: 55
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 68-LCC, 68-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

A/D CONVERTER ELECTRICAL CHARACTERISTICS
(AV
values are at T
NOTES FOR A/D CONVERTER ELECTRICAL CHARACTERISTICS
1. The following condition must not be exceeded: GND-0.2V < AV
2. Due to the dynamic nature of the A/D converter, t
3. A complete conversion cycle requires 16 ACLK periods, including five input sampling periods.
4. This parameter is guaranteed by design.
TYPICAL I
PARAMETER
Analog Supply Voltage
Analog Supply Current
Analog Idle Mode Current
Analog Power-Down Mode Current
Analog Input Voltage
External Analog Reference Voltage
Analog Input Capacitance
A/D Clock
Sampling Time
Conversion Time
Resolution
Differential non-linearity
Integral non-linearity
Offset Error
Gain Error
Cross-talk between A/D inputs
CC
=V
CC
=5V, V
CC
A
=25°C)
VERSUS FREQUENCY
REF
=5V, f
OSC
=4MHz, T
SYMBOL
ADC7-
AI
A
ADC0
A
AI
A
t
AI
A
t
ACLK
t
E
E
E
VREF+
C
VREF-
E
ADC
E
ADS
DDPD
VCC
VSS
DL
OS
CT
DDI
IN
IL
DD
G
A
=-40°C to 85°C, unless otherwise noted. Typical
36 of 49
AV
16 t
5 t
A
GND
MIN
V
VREF-
10
SS
ACLK
1
ACLK
CC
ACLK
-0.2
has both min and max specifications.
TYP
-60
0.7
0.5
10
SS
< V
AV
A
MAX
GND
6.25
±1.0
±2.0
±2.0
±1.0
CC
V
VREF+
2.3
3.5
0.2
15
1
CC
CC
+ 0.2V.
+
UNITS
t
t
LSB
LSB
LSB
Bits
mA
mA
ACLK
ACLK
µA
dB
pF
µs
V
V
V
%
NOTES
2, 4
3, 4
4
4
4
4
4
4