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參數(shù)資料
| 型號： | X86C64SI |
| 英文描述： | E2 Micro-Peripheral |
| 中文描述： | E2微型外設(shè) |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 62K |
| 代理商： | X86C64SI |
X86C64
2
PIN DESCRIPTIONS
Address/Data (A/D
0
–A/D
7
)
Multiplexed low-order addresses and data. The ad-
dresses flow into the device while
AS
is LOW. After
AS
transitions from a LOW to HIGH the addresses are
latched. Once the addresses are latched these pins input
data or output data depending on
DS
, R/
W
, and CE.
Addresses (A
8
–A
12
)
High order addresses flow into the device when
AS
= V
IL
and are latched when
AS
goes HIGH.
Chip Enable (CE)
The Chip Enable input must be HIGH to enable all read/
write operations. When CE is LOW and
AS
is HIGH, the
X86C64 is placed in the low power standby mode.
Data Strobe (
DS
)
When used with a Z8 the
DS
input is tied directly to the
DS
output of the microcontroller.
Read/Write (R/
W
)
When used with a Z8 the R/
W
input is tied directly to the
R/
W
output of the microcontroller.
Address Strobe (
AS
)
Addresses flow through the latches to address decoders
when
AS
is LOW and are latched when
AS
transitions
from a LOW to HIGH.
Device Select (
SEL
)
Must be connected to V
SS
.
Write Control (
WC
)
The Write Control allows external circuitry to abort a
page load cycle once it has been initiated. This input is
useful in applications in which a power failure or proces-
sor RESET could interrupt a page load cycle. In this
case, the microcontroller might drive all signals HIGH,
causing bad data to be latched into the E
2
PROM. If the
Write Control input is driven HIGH (before t
TBLC
Max)
after Read/Write (R/
W
) goes HIGH, the write cycle will
be aborted.
When
WC
is LOW (tied to V
SS
) the X86C64 will be
enabled to perform write operations. When
WC
is HIGH
normal read operations may be performed, but all at-
tempts to write to the device will be disabled.
PIN CONFIGURATION
3819 FHD F01
PIN NAMES
Symbol
Description
AS
A/D
0
–A/D
7
A
8
–A
12
DS
R/
W
CE
WC
SEL
V
SS
V
CC
Address Strobe
Address Inputs/Data I/O
Address Inputs
Data Strobe Input
Read/Write Input
Chip Enable
Write Control
Device Select—Connect to V
SS
Ground
Supply Voltage
3819 PGM T01
NC
A12
NC
NC
WC
SEL
A/D0
A/D1
A/D2
A/D3
A/D4
VSS
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCC
R/W
AS
A8
A9
A11
DS
A10
CE
A/D7
A/D6
A/D5
X86C64
DIP/SOIC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X86C64SM | E2 Micro-Peripheral |
| X88257 | E2 Micro-Peripheral |
| X88257J | E2 Micro-Peripheral |
| X88257JI | E2 Micro-Peripheral |
| X88257JM | E2 Micro-Peripheral |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X86C64SM | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
| X8701-10 | 制造商:Cooper Crouse-Hinds 功能描述: |
| X8701-3 | 制造商:Cooper Crouse-Hinds 功能描述: |
| X87104121 | 制造商:n/a 功能描述:SOCKET 4PIN BULK |
| X8710412-1 | 制造商:n/a 功能描述:SOCKET 4PIN BULK |
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