W19B320ATT7H Winbond Electronics, W19B320ATT7H Datasheet - Page 34

• Manufacturer Part Number: W19B320ATT7H
• Description: IC FLASH 32MBIT 70NS 48TSOP
• Manufacturer: Winbond Electronics

Specifications of W19B320ATT7H

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 32M (4Mx8, 2Mx16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.10 Erase Algorithm
Notes:
7.11 Data Polling Algorithm
Notes:
1.
2. See DQ3 section for the sector erase timer details.
1. VA = Valid address for programming. During a sector erase operation; a valid address is any sector address within the
2. DQ7 should be rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5.
See Command Definitions Table for erase command sequence details.
sector being erased. During chip erase, a valid address is any non-protected sector address.
No
No
Command Sequence
Data Poll to Erasing
Erase Completed
Bank from System
Write Program
(Note1,2)
Data=FFh?
START
Read DQ7-DQ0
Read DQ7-DQ0
DQ7=Data?
DQ7=Data?
Addr=VA
START
DQ5=1?
Addr=VA
Yes
FAIL
No
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No
Yes
Yes
Yes
in progress
Embedded
algorithm
Erase
PASS
W19B320AT/B