qh25f320s33b8 Numonyx, qh25f320s33b8 Datasheet - Page 8

• Manufacturer Part Number: qh25f320s33b8
• Description: Numonyx? Serial Flash Memory S33
• Manufacturer: Numonyx

2.0
2.1
Table 1:
Datasheet
8
Size (KB)
64
64
64
64
64
64
64
64
64
64
64
64
...
...
...
...
Bottom Boot Memory Map (Sheet 1 of 2)
Functional Overview
This section provides an overview of the features and capabilities of the NAME OF
PRODUCT.
The S33 device is available in 16-, 32-, and 64-Mbit densities with a common SPI
interface. The SPI interface consists of 8 pins. Six of these pins are signals; the other
two are Vcc and ground.
The S33 device contains eight 8-Kbyte parameter blocks and up to 127 64-Kbyte main
memory sectors. The eight 8-Kbyte parameter blocks can be treated as one 64-Kbyte
main memory sector.
The S33 device includes new security features. Two 8-byte, thirty 16-byte, and one 10-
byte individually-lockable OTP Protection Registers can support multiple uses, including
unique flash device identification.
A sector erase operation erases one of the device’s 64-Kbyte main memory sectors or
all eight 8-Kbyte parameter blocks in parallel, independent of other memory sectors. A
parameter block erase operation erases the specified parameter block; the operation is
ignored when the address is outside the parameter block space. Each block or memory
sector can be independently erased 100,000 times. A bulk erase operation erases the
entire chip.
Each device incorporates a write buffer of 256 bytes (128 words) to allow optimum
programming performance. Page program operation uses the write buffer to program
up to 256-bytes within a 256-byte-aligned main memory region. A given page can be
programmed multiple times between erase cycles.
Memory Maps
Sector
127
126
64
63
62
32
31
30
16
15
14
...
...
...
...
4
Memory Addressing (Hex)
7E0000 - 7EFFFF
400000 - 40FFFF
3E0000 - 3EFFFF
200000 - 20FFFF
1E0000 - 1EFFFF
100000 - 10FFFF
7F0000 - 7FFFFF
3F0000 - 3FFFFF
1F0000- 1FFFFF
E0000 - EFFFF
40000 - 4FFFF
F0000 - FFFFF
64-Mbit
...
...
...
...
Memory Addressing (Hex)
3E0000 - 3EFFFF
200000 - 20FFFF
1E0000 - 1EFFFF
100000 - 10FFFF
3F0000 - 3FFFFF
1F0000- 1FFFFF
F0000 - FFFFF
E0000 - EFFFF
40000 - 4FFFF
32-Mbit
...
...
...
Numonyx™ Serial Flash Memory (S33)
Memory Addressing (Hex)
Order Number: 314822-03
1E0000 - 1EFFFF
100000 - 10FFFF
1F0000- 1FFFFF
E0000 - EFFFF
40000 - 4FFFF
F0000 - FFFFF
16-Mbit
...
...
December 2007