DS87C520-WCL+ Maxim Integrated, DS87C520-WCL+ Datasheet - Page 45

• Manufacturer Part Number: DS87C520-WCL+
• Manufacturer: Maxim Integrated

DATA SHEET REVISION SUMMARY
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No 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
REVISION
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
091605
070505
040104
070300
070698
022097
110195
1) In DC Electrical Characteristics table, added separate specification for DS83C520 V
2) Changed V
3) Added Pb-free/RoHS-compliant part numbers to Ordering Information table.
4) Deleted the “A” from the IPC/JEDEC J-STD-020 specification in the Absolute Maximum Ratings.
5) Removed “Preliminary” status.
6) Soldering temperature parameter now references JEDEC specification.
7) Added note to absolute maximums clarifying voltages referenced to ground.
8) Updated I
9) Added note clarifying DC electrical test conditions.
10) Added note clarifying V
11) Updated AC and MOVX electrical characteristics with final characterization values.
Preliminary release.
12) Added t
1) Corrected P0 pinout description for TQFP package.
2) Clarified point at which reset delay begins.
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 170kΩ to 200kΩ maximum.
6) Corrected “Data memory write with stretch” diagrams to show falling edge of ALE coincident with
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
rising edge of C3 clock.
AVLL2
CC
RST
, I
specification and corrected MOVX timing diagrams to show t
IDLE
max to from 4.25V to 4.275V for DS83C520 value.
, I
© 2005 Maxim Integrated Products • Printed USA
STOP
IL
, I
OH3
specification.
SPBG
specification applies to first clock cycle following the transition.
, I
DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers
IL
, and I
45 of 45
TL
DESCRIPTION
to incorporate errata conditions.
CC
.
QVXL
to t
QVXH
.
AVLL2
instead of t
PFW
.
AVLL
.