參數(shù)資料
型號: NSAM266SAA
廠商: National Semiconductor Corporation
元件分類: FLASH
英文描述: 4 Mbit Uniform Sector, Serial Flash Memory
中文描述: 4兆位統(tǒng)一部門,串行閃存
文件頁數(shù): 4/52頁
文件大小: 571K
代理商: NSAM266SAA
1.0 Hardware
(Continued)
1.2 PIN ASSIGNMENT
The following sections detail the pins of the NSAM266SA
processor. Slashes separate the names of signals that
share the same pin.
1.2.1 PinDSignal Assignment
Table 1-1 shows all the pins, and the signals that use them
in different configurations. It also shows the type and direc-
tion of each signal.
TABLE 1-1. CompactSPEECH PinDSignal Assignment
Pin Name
Type
Signal Name
I/O
A(0:15)
TTL
A(0:15)
Output
CCLK
TTL
CCLK
Output
CDIN
TTL
CDIN
Input
CDOUT
TTL
CDOUT
Output
CFS0
TTL
CFS0
Output
D(0:7)
TTL
D(0:7)
I/O
MWCS
TTL (Note A)
MWCS
Input
TST
TTL
TST
Input
MWRDY
TTL
MWRDY
I/O
MWRQST
TTL
MWRQST
I/O
MWDOUT
TTL
MWDOUT
Output
PB(0:2)
(Note B)
TTL
EA(16:18)
Output
PB(3:6)
(Note C)
TTL
CS(0:3)
Output
EMCS/
ENV0
TTL1 (Note D)
CMOS (Note E)
EMCS
ENV0
Output
Input
MWCLK
TTL
MWCLK
Input
MWDIN
TTL
MWDIN
Input
MMCLK
TTL1 (Note D)
MMCLK
Output
MMDIN
TTL
MMDIN
Input
MMDOUT
TTL1 (Note D)
MMDOUT
Output
CFS0
CMOS
CFS0
Output
RESET
Schmitt (Note A)
RESET
Input
V
CC
Power
V
CC
V
SS
Power
V
SS
X1
XTAL
X1
OSC
X2/CLKIN
XTAL
TTL
X2
OSC
Input
CLKIN
Note A:
Schmitt trigger input.
Note B:
Virtual address lines for IVS ROM.
Note C:
Chip select lines for Serial Flash devices.
Note D:
TTL1 output signals provide CMOS levels in the steady
state, for small loads.
Note E:
Input during reset, CMOS level input.
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