AT52BR1672-85CI ATMEL [ATMEL Corporation], AT52BR1672-85CI Datasheet - Page 19

• Manufacturer Part Number: AT52BR1672-85CI
• Description: 16-megabit Flash and 2-megabit/ 4-megabit SRAM Stack Memory
• Manufacturer: ATMEL [ATMEL Corporation]

Sector or Chip Erase Cycle Waveforms
Notes:
2604B–STKD–09/02
A0 - A19
DATA
1. OE must be high only when WE and CE are both low.
2. For chip erase, the address should be 555. For sector erase, the address depends on what sector is to be erased.
3. For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
WE
OE
CE
(See note 3 under Command Definitions.)
(1)
t
AS
555
t
WC
WORD 0
t
AH
AA
t
t
DS
WP
AAA
WORD 1
t
DH
55
555
t
WPH
WORD 2
80
555
WORD 3
AA
AAA
WORD 4
AT52BR1672(T)/1674(T)
55
Note 2
WORD 5
Note 3
t
SR/W
t
t
EC
ADDRESS
t
VALID
ACC
OUTPUT
VALID
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