CAT28F020L12 ON Semiconductor, CAT28F020L12 Datasheet - Page 12

• Manufacturer Part Number: CAT28F020L12
• Description: IC FLASH 2MBIT 120NS 32DIP
• Manufacturer: ON Semiconductor

Specifications of CAT28F020L12

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-DIP (0.600", 15.24mm)
• Data Bus Width: 8 bit
• Architecture: Non Sectored
• Interface Type: Parallel
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 30 mA
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: CAT28F020L-12; CAT28F020L-12

CAT28F020
Figure 7. Programming Algorithm
Note:
(1) The algorithm MUST BE FOLLOWED to ensure proper and reliable operation of the device.
Doc. No. MD-1029, Rev. F
INCREMENT
ADDRESS
NO
WRITE PROG. CMD
VERIFY COMMAND
PROG. COMMAND
WRITE PROGRAM
ADDR AND DATA
PROGRAMMING
PROGRAMMING
TIME OUT 10 s
FROM DEVICE
WRITE SETUP
TIME OUT 6 s
WRITE READ
APPLY V PPH
COMPLETED
APPLY V PPL
PLSCNT = 0
READ DATA
ADDRESS?
COMMAND
INITIALIZE
ADDRESS
VERIFY
DATA ?
START
LAST
YES
YES
(1)
NO
APPLY V PPL
PROGRAM
PLSCNT
ERROR
= 25 ?
INC
YES
NO
12
OPERATION
2ND WRITE
1ST WRITE
1ST WRITE
1ST WRITE
STANDBY
STANDBY
STANDBY
CYCLE
CYCLE
CYCLE
CYCLE
READ
BUS
COMMAND
PROGRAM
PROGRAM
VERIFY
WRITE
SETUP
READ
Characteristics subject to change without notice
VALID ADDRESS AND DATA
COMPARE DATA OUTPUT
SETS THE REGISTER FOR
INITIALIZE PULSE COUNT
PLSCNT = PULSE COUNT
READ BYTE TO VERIFY
(OR V PP HARDWIRED)
(OR V PP HARDWIRED)
V PP RAMPS TO V PPH
V PP RAMPS TO V PPL
INITIALIZE ADDRESS
TO DATA EXPECTED
© 2009 SCILLC. All rights reserved.
READ OPERATION
PROGRAMMING
COMMENTS
DATA = C0H
DATA = 40H
DATA = 00H
WAIT
WAIT
5108 FHD F06