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PTPM749DB Datasheet(PDF) 8 Page - NXP Semiconductors

Part # PTPM749DB
Description  Microcontroller with TrackPoint microcode from IBM
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PTPM749DB Datasheet(HTML) 8 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
TPM749
Microcontroller with TrackPoint
™ microcode from IBM
1996 May 01
8
DC ELECTRICAL CHARACTERISTICS (Continued)
Tamb = 0°C to +70°C, AVCC = 5V ±5, AVSS = 0V4
VCC = 5V ± 10%, VSS = 0V
TEST
LIMITS4
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP1
MAX
UNIT
Analog Inputs (A/D guaranteed only with quartz window covered.)
AVCC
Analog supply voltage10
AVCC = VCC±0.2V
4.5
5.5
V
AICC
Analog operating supply current
AVCC = 5.12V
3 9
mA
AVIN
Analog input voltage
AVSS–0.2
AVCC+0.2
V
CIA
Analog input capacitance
15
pF
tADS
Sampling time
8tCY
s
tADC
Conversion time
40tCY
s
Analog Inputs (A/D guaranteed only with quartz window covered.) (Continued)
R
Resolution
8
bits
ERA
Relative accuracy
±1
LSB
OSe
Zero scale offset
±1
LSB
Ge
Full scale gain error
0.4
%
MCTC
Channel to channel matching
±1
LSB
Ct
Crosstalk
0–100kHz
–60
dB
NOTES:
1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any conditions other than those described in the AC and DC Electrical Characteristics section
of this specification is not implied.
2. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin:
10mA
Maximum IOL per 8-bit port:
26mA
Maximum total IOL for all outputs:
67mA
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed
test conditions.
3. This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive static
charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maxima.
4. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise
noted.
5. Power-down ICC is measured with all output pins disconnected; port 0 = VCC; X2, X1 n.c.; RST = VSS.
6. ICC is measured with all output pins disconnected; X1 driven with tCLCH, tCHCL = 5ns, VIL = VSS + 0.5V, VIH = VCC – 0.5V; X2 n.c.;
RST = port 0 = VCC. ICC will be slightly higher if a crystal oscillator is used.
7. Idle ICC is measured with all output pins disconnected; X1 driven with tCLCH, tCHCL = 5ns, VIL = VSS + 0.5V, VIH = VCC – 0.5V; X2 n.c.;
port 0 = VCC; RST = VSS.
8. Load capacitance for ports = 80pF.
9. The resistor ladder network is not disconnected in the power down or idle modes. Thus, to conserve power, the user may remove AVCC.
10. If the A/D function is not required, or if the A/D function is only needed periodically, AVCC may be removed without affecting the operation of
the digital circuitry. Contents of ADCON and ADAT are not guaranteed to be valid. If AVCC is removed, the A/D inputs must be lowered to
less than 0.5V. Digital inputs on P1.0–P1.4 will not function normally.
11. These parameters do not apply to P1.0–P1.4 if the A/D function is enabled.


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