AT49F040T

Features:

• Single Voltage Operation
5V Read
5V Reprogramming
• Fast Read Access Time - 70 ns
• Internal Program Control and Timer
• 16K bytes Boot Block With Lockout
• Fast Erase Cycle Time - 10 seconds
• Byte By Byte Programming - 50 ms/Byte
• Hardware Data Protection
• DATA Polling For End Of Program Detection
• Low Power Dissipation
50 mA Active Current
100 mA CMOS Standby Current
• Typical 10,000 Write Cycles


Pinout




Specifications

Temperature Under Bias.............................. -55°C to +125°C
Storage Temperature .................................. -65°C to +150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to V_CC + 0.6V
Voltage on OE
with Respect to Ground ...................................-0.6V to +13.5V


Description

The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmel's advanced nonvolatile CMOS technology, the device offers access times to 70 ns with power dissipation of just 275 mW over the commercial temperature range. When AT49F040T is deselected, the CMOS standby current is less than 100 mA.

AT49F040T contains a user-enabled "boot block" protection feature. Two versions of the feature are available: the AT49F040 locates the boot block at lowest order addresses ("bottom boot"); the AT49F040T locates AT49F040T at highest order addresses ("top boot").