DS87C520-WCL Maxim Integrated Products, DS87C520-WCL Datasheet - Page 43

• Manufacturer Part Number: DS87C520-WCL
• Description: IC MCU EPROM/ROM 33MHZ HS 40CDIP
• Manufacturer: Maxim Integrated Products
• Series: 87Cr

Specifications of DS87C520-WCL

• 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: EPROM, UV
• 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: 40-CDIP (0.600", 15.24mm) Window
• Controller Family/series: (8051) 8052
• No. Of I/o's: 32
• Ram Memory Size: 1KB
• Cpu Speed: 33MHz
• No. Of Timers: 3
• Embedded Interface Type: UART
• Rohs Compliant: Yes
• Processor Series: DS87C520
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No
• Other names: DS87C520WCL

DATA SHEET REVISION SUMMARY
REVISION
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product. No
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The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
Preliminary release.
1) Update ALE pin description.
2) Add note pertaining to erasure window.
3) Add note pertaining to internal MOVX SRAM.
4) Change Note 10 from RST = 5.5V to RST = V
5) Change serial port mode 0 timing diagram label from t
1) Update PMM operating current estimates
2) Added note to clarify I
3) Added note to prevent accidental corruption of Watchdog Timer count while changing counter length.
4) Changed minimum oscillator frequency to 1MHz when using external crystal.
5) Changed RST pulldown resistance from 170kto 200kmaximum.
6) Corrected “Data memory write with stretch” diagrams to show falling edge of ALE coincident with
1) Corrected P0 pinout description for TQFP package.
2) Clarified point at which reset delay begins.
1) Removed “Preliminary” status.
2) Soldering temperature parameter now references JEDEC specification.
3) Added note to absolute maximums clarifying voltages referenced to ground.
4) Updated I
5) Added note clarifying DC electrical test conditions.
6) Added note clarifying V
7) Updated AC and MOVX electrical characteristics with final characterization values.
Added t
1) Added Pb-free/RoHS-compliant part numbers to Ordering Information table.
2) Deleted the “A” from the IPC/JEDEC J-STD-020 specification in the Absolute Maximum Ratings.
1) In DC Electrical Characteristics table, added separate specification for DS83C520 V
2) Changed V
1) (Page 30) In the Absolute Maximum Ratings table, changed the operating range from 0C to +70C to
2) (Page 33) In the MOVX Characteristics table, added Note 2 and changed t
-40C to +85C (correction for typographical error; this does not reflect a change in the device or device
testing).
Note 2.
rising edge of C3 clock.
AVLL2
specification and corrected MOVX timing diagrams to show t
CC
RST
, I
IDLE
max to from 4.25V to 4.275V for DS83C520 value.
, I
STOP
IL
, I
OH3
specification.
SPBG
specification applies to first clock cycle following the transition.
© 2007 Maxim Integrated Products
, I
DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers
IL
, and I
43 of 43
42 of 42
TL
DESCRIPTION
to incorporate errata conditions.
CC
.
QVXL
to t
QVXH
.
AVLL2
RLAZ
instead of t
max from Note 1 to
PFW
.
AVLL
.