AT91FR4042 ATMEL Corporation, AT91FR4042 Datasheet - Page 4

• Manufacturer Part Number: AT91FR4042
• Description: The AT91FR4042 Features 256K Bytes of On-chip SRAM, 512K Bytes of Flash, an External Bus Interface, a 3-channel Timer/Counter, 2 Usarts, a Watchdog Timer And Advanced Power-saving Features.
• Manufacturer: ATMEL Corporation

Table 1. AT91FR4042 Pin Description (Continued)
4
Memory
Module
Power
Flash
AT91FR4042
Name
NCSF
NBUSY
NRSTF
VDDIO
VDDCORE
GND
VPP
Preliminary
Function
Flash Memory Select
Flash Memory Busy Output
Flash Memory Reset Input
Power
Power
Ground
Power
Ground
Output
Power
Power
Power
Type
Input
Input
Active
Level
Low
Low
Low
–
–
–
–
Comments
Enables Flash Memory when pulled low
Flash RDY/BUSY signal; open-drain
Resets Flash to standard operating mode
All V
MUST be connected to their respective
supplies by the shortest route
See AT49BV/LV4096A
4-megabit (256K x 16/512K x 8) Single 2.7
Volt Flash Memory Datasheet
DDIO,
V
DDCORE
and all GND pins
2648B–ATARM–12/02