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参数资料
| 型号： | PLC18V8Z25DB |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | PLD |
| 英文描述： | Zero standby power CMOS versatile PAL devices |
| 中文描述： | OT PLD, 25 ns, PDSO20 |
| 封装： | 5.30 MM, PLASTIC, MO-150AE, SOT-339-1, SSOP-20 |
| 文件页数： | 14/23页 |
| 文件大小： | 225K |
| 代理商： | PLC18V8Z25DB |
Philips Semiconductors
Product specification
PLC18V8Z
Zero standby power
CMOS versatile PAL devices
1997 Aug 08
14
REGISTER PRELOAD FUNCTION
(DIAGNOSTIC MODE ONLY)
In order to facilitate the testing of state machine/controller designs, a
diagnostic mode register preload feature has been incorporated into
the PLC18V8Z series device. This feature enables the user to load
the registers with predetermined states while a super voltage is
applied to Pins 11 and 6 (I9/OE and I5). (See diagram for timing and
sequence.)
To read the data out, Pins 11 and 6 must be returned to normal TTL
levels. The outputs, F0 – F7, must be enabled in order to read data
out. The Q outputs of the registers will reflect data in as input via
F0 – F7 during preload. Subsequently, the register Q output via the
feedback path will reflect the data in as input via F0 – F7.
Refer to the voltage waveform for timing and voltage references.
t
PL
= 10
μ
sec.
REGISTER PRELOAD (DIAGNOSTIC MODE)
éééééééééééééééééééé
éééééééééééééééééééé
I
/
OE
(PIN 11)
I
5
(PIN 6)
I
/
CLK
(PIN 1)
F
0–7
I
1–4
,
6–8
PRELOAD DATA IN
PRELOAD DATA OUT
DATA OUT
OE(V
OL
)
I
0
/
CLK
F
0–7
I
1–4
,
6–8
t
PL
t
PL
t
PL
t
PL
t
PL
t
PL
t
OE
t
CKL
t
CKO
t
IS
t
IH
5.0V
5.0V
12.0V
12.0V
12.0V
5.0V
SP00022
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| PLC18V8Z25DH | Zero standby power CMOS versatile PAL devices |
| PLC18V8Z25N | Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35D | Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35DB | Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35DH | Zero standby power CMOS versatile PAL devices |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PLC18V8Z25DH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Zero standby power CMOS versatile PAL devices |
| PLC18V8Z25N | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35D | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Zero standby power CMOS versatile PAL devices |
| PLC18V8Z35DB | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Zero standby power CMOS versatile PAL devices |
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