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EM78P221/2N
8-Bit Microcontroller with OTP ROM
Product Specification (V1.0) 10.19.2007 • 1
(This specification is subject to change without further notice)
Read Me First !
Comparison between V-Package and U-Package version
This series of microcontrollers comprise of the older V-package version and the newer
U-package version. In the newer U-package version, a Code Option NRM is added
and various features such as Crystal mode Operating frequency range, IRC mode
wake-up time, WDT Time-out time, Comparator function and Pins function have been
modified to favorably meet users’ requirements. The following table is provided for
quick comparison between the two package version and for user convenience in the
choice of the most suitable product for their application.
EM78P221/222N-V EM78P221/222N-U
Crystal mode Operating
frequency range at 0°C~ 70°C
DC ~ 12MHz, 4.0V
DC ~ 8MHz, 3.0V
DC ~ 4MHz, 2.1V
DC ~ 16MHz, 4.5V
DC ~ 8MHz, 3.0V
DC ~ 4MHz, 2.1V
IRC mode wake-up time
Sleep mode → Normal mode
Condition: 5V, 4MHz
64μs 10μs
P52, P53 Function Output only Input / Output
Comparator Function Comparator only Comparator / OPA
WDT Time-out time
(Prescaler = 1 : 1)
Condition: VDD = 5V
16.5 ms ± 30 % 15.2 ms ± 30 %
Code Option
×
Added a Code Option NRM
EM78P221/2N-V Package version EM78P221/2N-U Package version