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PDF XC68HC812A4 Data sheet ( Hoja de datos )
| Número de pieza | XC68HC812A4 | |
| Descripción | Technical Suppliment Document Covering The 3 V Version of The 812A4 | |
| Fabricantes | Motorola Semiconductors | |
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MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
7/28/98Order this document by
MC68HC812A4EC/D
Technical Supplement
MC68C812A4 3.3V Electrical Characteristics
The MC68C812A4 is the low-voltage version of the standard MC68HC812A4 microcontroller unit
(MCU), a 16-bit device composed of standard on-chip peripheral modules connected by an intermodule
bus. Modules include a 16-bit central processing unit (CPU12), a Lite integration module (LIM), two
asynchronous serial communications interfaces (SCI0 and SCI1), a serial peripheral interface (SPI), a
timer and pulse accumulation module, an 8-bit analog-to-digital converter (ATD), 1-Kbyte RAM, 4-Kbyte
EEPROM, and memory expansion logic with chip selects, key wakeup ports, and a phase-locked loop
(PLL).
This supplement contains the most accurate electrical information for the MC68C812A4 microcontroller
available at the time of publication. The information should be considered preliminary and is subject to
change. The following characteristics are contained in this document:
Table 1 Maximum Ratings
Table 2 Thermal Characteristics
Table 3 DC Electrical Characteristics
Table 4 Supply Current
Table 5 ATD Maximum Ratings
Table 6 ATD DC Electrical Characteristics
Table 7 Analog Converter Characteristics (Operating)
Table 8 ATD AC Characteristics (Operating)
Table 9 EEPROM Characteristics
Table 10 Control Timing
Table 11 Peripheral Port Timing
Table 12 Non-Multiplexed Expansion Bus Timing
Table 13 SPI Timing
www.datasheet4u.com© MOTOROLA INC, 1997, 1998 PRELIMINARY
1 page  
Table 6 ATD DC Electrical Characteristics
VDD = 3.3 Vdc ± 0.3V, VSS = 0 Vdc, TA = TL to TH, ATD Clock = 2 MHz, unless
otherwise noted
Characteristic
Symbol Min Max Unit
Analog supply voltage
VDDA
3.0 3.6 V
Analog supply current
Normal operation
IDDA
1.0 mA
Reference voltage, low
VRL VSSA VDDA/2 V
Reference voltage, high
VREF differential reference voltage1
Input voltage2
Input current, off channel3
VRH
VRH−VRL
VINDC
IOFF
VDDA/2
3.0
VSSA
VDDA
3.6
VDDA
100
V
V
V
nA
Reference supply current
IREF
250 µA
Input capacitance
Not Sampling
Sampling
CINN
CINS
10 pF
15 pF
NOTES:
1. Accuracy is guaranteed at VRH − VRL = 3.3 Vdc ± 0.3V.
2. To obtain full-scale, full-range results, VSSA ≤ VRL ≤ VINDC ≤ VRH ≤ VDDA.
3. Maximum leakage occurs at maximum operating temperature. Current decreases by ap-
proximately one-half for each 10°C decrease from maximum temperature.
MC68C812A4
MOTOROLA
5
5 Page 
WAIT RECOVERY TIM
Figure 4 WAIT Recovery Timing Diagram
MC68C812A4
MOTOROLA
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet XC68HC812A4.PDF ] | |
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