DS87C520-QCL+ Maxim Integrated Products, DS87C520-QCL+ Datasheet - Page 34

• Manufacturer Part Number: DS87C520-QCL+
• Description: IC MCU EPROM/ROM 33MHZ HS 44PLCC
• Manufacturer: Maxim Integrated Products
• Series: 87Cr

Specifications of DS87C520-QCL+

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LCC, 44-PLCC
• Processor Series: 87C
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 4.5 V to 5.5 V
• Package: 44PLCC
• Device Core: 8051
• Family Name: 87C
• Maximum Speed: 33 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MOVX CHARACTERISTICS (continued)
EXTERNAL CLOCK CHARACTERISTICS
SERIAL PORT MODE 0 TIMING CHARACTERISTICS
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
Serial Port Clock Cycle
Time
Output Data Setup to
Clock Rising
Output Data Hold from
Clock Rising
Input Data Hold after
Clock Rising
Clock Rising Edge to
Input Data Valid
M2
0
0
0
0
1
1
1
1
PARAMETER
M1
PARAMETER
0
0
1
1
0
0
1
1
M0
0
1
0
1
0
1
0
1
SYMBOL
t
t
t
t
t
QVXH
XHQX
XHDX
XHDV
XLXL
3 machine cycles (default)
SM2 = 0, 12 clocks per cycle
SM2 = 1, 4 clocks per cycle
SM2 = 0, 12 clocks per cycle
SM2 = 1, 4 clocks per cycle
SM2 = 0, 12 clocks per cycle
SM2 = 1, 4 clocks per cycle
SM2 = 0, 12 clocks per cycle
SM2 = 1, 4 clocks per cycle
SM2 = 0, 12 clocks per cycle
SM2 = 1, 4 clocks per cycle
MOVX CYCLES
2 machine cycles
4 machine cycles
5 machine cycles
6 machine cycles
7 machine cycles
8 machine cycles
9 machine cycles
DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers
SYMBOL
CONDITIONS
t
t
t
t
34 of 43
CHCX
CLCX
CHCL
CLCL
MIN
10
10
MIN
12 t
16 t
20 t
24 t
28 t
4 t
8 t
TYP
t
MCS
CLCL
CLCL
0
CLCL
CLCL
CLCL
CLCL
CLCL
12t
10t
11t
4t
3t
2t
3t
TYP
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MAX
5
5
MAX
UNITS
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns