at52br3224 ATMEL Corporation, at52br3224 Datasheet - Page 25

• Manufacturer Part Number: at52br3224
• Description: Single Plane Flash Combined With Sram
• Manufacturer: ATMEL Corporation

Program Cycle Characteristics
Program Cycle Waveforms
Sector or Chip Erase Cycle Waveforms
Notes:
1682A–10/01
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
BP
BPVPP
AS
AH
DS
DH
WP
WPH
WC
RP
EC
ECVPP
SEC
SECVPP
ES
PS
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.
(See note 3 under “Command Definitions in Hex” on page 14.)
Parameter
Word Programming Time (V
Word Programming Time (V
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Write Cycle Time
Reset Pulse Width
Chip Erase Cycle Time (V
Chip Erase Cycle Time (V
Sector Erase Cycle Time (V
Sector Erase Cycle Time (V
Erase Suspend Time
Program Suspend Time
A0-A20
DATA
WE
OE
CE
A0 - A20
(1)
DATA
PP
PP
WE
OE
CE
PP
PP
IHPP
PP
< 4.5V)
> 4.5V)
< 4.5V)
> 4.5V)
> 4.5V)
t
AS
< V
PP
t
AS
555
< 4.5V)
t
WC
WORD 0
t
AH
AA
555
t
WC
t
AH
t
t
WP
DS
AA
AAA
t
DS
t
WP
WORD 1
t
DH
AAA
55
t
DH
55
555
t
WPH
WORD 2
555
80
PROGRAM CYCLE
t
WPH
A0
555
WORD 3
ADDRESS
AA
INPUT
DATA
AAA
WORD 4
55
AT52BR3224(T)/3228(T)
Min
500
75
50
10
50
85
35
t
0
BP
Note 2
WORD 5
Note 3
555
t
EC
AA
Typ
200
100
20
10
Max
200
100
400
150
15
15
20
8
seconds
seconds
Units
ms
ms
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
25