cop888cf National Semiconductor Corporation, cop888cf Datasheet - Page 11
cop888cf
Manufacturer Part Number
cop888cf
Description
8-bit Cmos Rom Based Microcontrollers With 4k Memory And A/d Converter
Manufacturer
National Semiconductor Corporation
Datasheet
1.COP888CF.pdf
(44 pages)
- Current page: 11 of 44
- Download datasheet (563Kb)
A/D Converter Specifications
Note 17: Pins G6 and RESET are designed with a high voltage input network for factory testing. These pins allow input voltages greater than V
have sink current to V
tance to V
Note 18: For V
input voltages below ground or above the V
to conduct — especially at elevated temperatures, and cause errors for analog inputs near full-scale. The spec allows 50 mV forward bias of either diode. This means
that as long as the analog V
voltage range will therefore require a minimum supply voltage of 4.950 V
should be −0.3V to V
CC
is 750
IN
(−) V
CC
CC
(typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
IN
(+) the digital output code will be 0000 0000. Two on-chip diodes are tied to each analog input. The diodes will forward conduct for analog
+0.3V.
when biased at voltages greater than V
IN
does not exceed the supply voltage by more than 50 mV, the output code will be correct. To achieve an absolute 0 V
CC
supply. Be careful, during testing at low V
FIGURE 3. MICROWIRE/PLUS Timing
(Continued)
CC
(the pins do not have source current when biased at a voltage below V
DC
over temperature variations, initial tolerance and loading. The voltage on any analog input
11
CC
levels (4.5V), as high level analog inputs (5V) can cause this input diode
DS009425-26
CC
). The effective resis-
CC
DC
and the pins will
www.national.com
to 5 V
DC
input
Related parts for cop888cf
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Freescale Semiconductor Technical Data
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Pllatinum Tm Fractional N Rf / Integer N If Dual Low Power Frequency Synthesizer
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Pllatinum? 2.0 Ghz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Pllatinumtm 160 Mhz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Dual N-channel Enhancement Mode Field Effect Transistor
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Video Amplifier System (obsolete)
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Synchronous Step-up DC/DC Converter For White Led Applications
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
CLC420 - High Speed, Voltage Feedback op Amp, Package: Lcc, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Monolithic Triple 4.5 CRT Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Differential Video Amplifier
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
ADC10061 - 10-Bit 600 NS A/D Converter With Input Multiplexer And Sample/Hold, Package: Soic Wide, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
DS36277 - Dominant Mode Multipoint Transceiver, Package: Soic Narrow, Pin Nb=8
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Printer Solenoid Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
Part Number:
Description:
Quad High Speed Trapezoidal Bus Transceiver
Manufacturer:
National Semiconductor Corporation
Datasheet: