MC68HC05V12 Datasheet, PDF (232/246 Pages) Freescale Semiconductor, Inc – HCMOS Microcontreller Unit

Freescale Semiconductor, Inc.
Electrical Specifications
17.8 A/D Converter Characteristics
Characteristic⁽¹⁾
Min
Max
Unit
Comments
Resolution
8
8
Bits
Absolute accuracy
V_REFL = 0.0 V, V_REFH = V_DD
Conversion range
V_REFH
V_REFL
—
+1
V_REFL
V_REFL
–0.1
V_REFH
V_DD
V_REFH
LSB Include quantization
A/D accuracy decreases
V
proportionately as V_REFH is
reduced below minimum V_CCA.
Not tested
Power-up time
—
100
µs
Input leakage
PD0–PD4
V_REFL, V_REFH
Conversion time⁽²⁾
(Includes sampling time)
—
+1
µA
—
+1
32
32
t_AD
(Note 2)
Monotonicity
Inherent (within total error)
Zero input reading
Full-scale reading
Sample time
00
01
Hex
V_In = 0 V
FE
FF
Hex
V_In = V_REFH
12
12
t_AD
(Note 3)
Input capacitance
—
8
pF
Not tested
Analog input voltage
V_REFL V_REFH
V
A/D on current stabilization time
t_ADON
—
100
µs
RC oscillator stabilization time
t_RCON
—
5
µs
1. V_CCA = 5.0 ± 10% Vdc ± 10%, V_SSA = 0.0 Vdc, T_A = −40°C to +85°C, unless otherwise noted.
2. t_AD = t_CYC if clock source equals MCU.
Technical Data
Electrical Specifications
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MC68HC05V12 — Rev. 2.0