EM78P221/2N
8-Bit Microcontroller with OTP ROM
Product Specification (V1.0) 10.19.2007 • 55
(This specification is subject to change without further notice)
8.1 Comparator (OP) Characteristic
Vdd = 5.0V, Vss=0V, Ta=25
°
C
Symbol Parameter Condition Min. Typ. Max. Unit
VOS Input Offset Voltage RL = 5.1K Note
1
− − 10 mV
Vcm
Input Common-Mode Voltage
Range
Note
2
GND − VDD-1 V
IOS Input Offset Current − − − 50 nA
IBS Input Bias Current − − 25 250 nA
ICO Supply Current of Comparator − − 300 − μA
TRS Response Time
VREF=1.4V,VRL = 5V,
RL = 5.1k, CL=15p, Note
3
0.5 1.3 3.5
μs
TLRS Large Signal Response Time VRL = 5V, RL = 5.1k
−
300
−
ns
IOL Output Sink Current
Vi (-) =1V, Vi (+) =0V,
Vo = GND+0.5V
−
12
−
mA
VSAT Saturation Voltage Vi (-) =1V, Vi (+) =0V, IOL ≤ 4mA
−
0.2 0.4 V
VS Operating Range − 2.5 − 5.5 V
Note:
1
. The output voltage is in the unit gain circuitry and over the full input common-mode range.
2
. The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V.
The upper end of the common-mode voltage range is VDD-1.
3
. The response time specified is a 100mV input step with 5mV overdrive.
9 AC Electrical Characteristic
Ta=25
°
C, VDD=5V±5%, VSS=0V
Symbol Parameter Conditions Min Type Max Unit
Dclk Input CLK Duty Cycle − 45 50 55 %
Crystal type 100 − DC ns
Tins
Instruction Cycle Time
(CLKS="0")
RC type 500 − DC ns
Ttcc TCC Input Time Period − (Tins+20) × N* − − ns
Tdrh Device Reset Hold Time Ta = 25
°
C 11.3 16.2 21.6 ms
Trst /RESET Pulse Width Ta = 25
°
C 2000 − − ns
Twdt Watchdog Timer Duration Ta = 25
°
C 11.3 16.2 21.6 ms
Tset Input Pin Setup Time − − 0 ns
Thold Input Pin Hold Time − 15 20 25 ns
Tdelay Output Pin Delay Time Cload=20pF 45 50 55 ns
Tdrc ERC Delay Time Ta = 25
°
C 1 3 5 ns
Note: *N = selected prescaler ratio
