C3 Discrete
2.2
Block Diagram
Figure 1: C3 Flash Memory Device Block Diagram
DQ 0-DQ15
V
CCQ
Output Buffer
Input Buffer
Identifier
Register
Status
Register
I/O Logic
CE#
WE#
OE#
Command
User
Interface
Power
Reduction
Control
Data
Comparator
RP#
WP#
Y-Decoder
X-Decoder
Y-Gating/Sensing
Write State
Machine
Program/Erase
Voltage Switch
A[MAX:MIN]
Input Buffer
V
PP
Address
Latch
V
CC
GND
Address
Counter
2.3
Memory Map
The C3 Discrete device is asymmetrically blocked, which enables system code and data
integration within a single flash device. The bulk of the array is divided into 32 Kword
main blocks that can store code or data, and 4 Kword boot blocks to facilitate storage
of boot code or for frequently changing small parameters. See Table 1, “Top Boot
Memory Map” on page 11 and Table 2, “Bottom Boot Memory Map” on page 12 for
details.
Datasheet
10
March 2008
290645-24
NUMONYX [ NUMONYX B.V ]
