Manual
Table Of Contents
- Features
- Description
- Block Diagram
- Device Operation
- Command Definition (in Hex)(1)
- Absolute Maximum Ratings*
- DC and AC Operating Range
- Operating Modes
- DC Characteristics
- AC Read Characteristics
- AC Read Waveforms (1)(2)(3)(4)
- Input Test Waveform and Measurement Level
- Output Load Test
- Pin Capacitance
- AC Byte Load Characteristics
- AC Byte Load Waveforms
- Program Cycle Characteristics
- Program Cycle Waveforms
- Sector or Chip Erase Cycle Waveforms
- Data Polling Characteristics(1)
- Data Polling Waveforms
- Toggle Bit Characteristics(1)
- Toggle Bit Waveforms(1)(2)(3)
- Software Product Identification Entry(1)
- Software Product Identification Exit(1)
- Boot Block Lockout Feature Enable Algorithm(1)
- AT49F002 Ordering Information
- AT49F002N Ordering Information
- AT49F002T Ordering Information
- AT49F002NT Ordering Information
- Pin Configurations
AT49F002(N)(T)
9
Program Cycle Waveforms
Sector or Chip Erase Cycle Waveforms
Notes: 1. OE must be high only when WE and CE are both low.
2. For chip erase, the address should be 5555. For sector erase, the address depends on what sector is to be erased.
(See note 4 under command definitions.)
3. For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
Program Cycle Characteristics
Symbol Parameter Min Typ Max Units
t
BP
Byte Programming Time 10 50 µs
t
AS
Address Set-up Time 0 ns
t
AH
Address Hold Time 50 ns
t
DS
Data Set-up Time 50 ns
t
DH
Data Hold Time 0 ns
t
WP
Write Pulse Width 90 ns
t
WPH
Write Pulse Width High 90 ns
t
EC
Erase Cycle Time 10 seconds