DS87C550-QCL+ Maxim Integrated Products, DS87C550-QCL+ Datasheet - Page 49

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

Specifications of DS87C550-QCL+

• 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: 0°C ~ 70°C
• Package / Case: 68-LCC, 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

DS87C550 EPROM High-Speed Microcontroller with ADC and PWM
REVISION HISTORY
The following represent the key differences between the 10/26/04 and 07/05/05 version of the DS87C550
data sheet. Please review this summary carefully.
1. Added Pb-free part numbers to the Ordering Information table.
The following represent the key differences between the 06/14/99 and the 10/26/04 version of the
DS87C550 data sheet. Please review this summary carefully.
1. Preliminary status was removed.
2. AC and DC Electrical Specifications updated with final characterization data.
3. Added t
parameter.
AVLL2
4. Clarified that the typical oscillator fail detect threshold is 40kHz.
The following represent the key differences between the 06/16/98 and the 06/14/99 version of the
DS87C550 data sheet. Please review this summary carefully.
1. Corrected minor typographical errors on pages 3, 5, 7, 9, 17, 20, 21, 22, 26 and 33.
2. Added standard “Absolute Maximum Ratings” notation.
= 5V ± 10%, 0°C to +70°C).
3. Added AID Specification conditions (V
CC
4. Updated port 5’s V
and I
specification.
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