EM78P458/459

OTP ROM

6.ELECTRICAL CHARACTERISTICS

6.1DC Electrical Characteristic(Ta=0°C ~ 70 °C, VDD=5.0V±5%, VSS=0V)

 

Symbol

Parameter

Condition

Min

Typ

Max

Unit

 

 

 

 

 

 

 

 

 

Fxt

XTAL: VDD to 3V

Two cycle with two clocks

DC

 

8

MHz

 

XTAL: VDD to 5V

DC

 

20

MHz

 

 

 

 

 

RC: VDD to 5V

R: 5.1KΩ, C: 100pF

F±30%

760

F±30%

KHz

 

IIL

Input Leakage Current for input pins

VIN = VDD, VSS

 

 

±1

∝A

 

VIH1

Input High Voltage,VDD=5V

Ports 5, 6

2.0

 

 

V

 

VIL1

Input Low Voltage,VDD=5V

Ports 5, 6

 

 

0.8

V

 

VIHT1

Input High Threshold Voltage,VDD=5V

/RESET, TCC

2.0

 

 

V

 

VILT1

Input Low Threshold Voltage,VDD=5V

/RESET, TCC

 

 

0.8

V

 

VIHX1

Clock Input High Voltage,VDD=5V

OSCI

2.5

 

 

V

 

VILX1

Clock Input Low Voltage,VDD=5V

OSCI

 

 

1.0

V

 

VIH2

Input High Voltage,VDD=3V

Ports 5, 6

1.5

 

 

V

 

VIL2

Input Low Voltage,VDD=3V

Ports 5, 6

 

 

0.4

V

 

VIHT2

Input High Threshold Voltage,VDD=3V

/RESET, TCC

1.5

 

 

V

 

VILT2

Input Low Threshold Voltage,VDD=3V

/RESET, TCC

 

 

0.4

V

 

VIHX2

Clock Input High Voltage,VDD=3V

OSCI

1.5

 

 

V

 

VILX2

Clock Input Low Voltage,VDD=3V

OSCI

 

 

0.6

V

 

VOH1

Output High Voltage

IOH = -12.0 mA

2.4

 

 

V

 

(Ports 5, 6)

 

 

 

 

 

 

 

 

 

 

VOL1

Output Low Voltage (P51~P57, P60~P63,

IOL = 12.0 mA

 

 

0.4

V

 

P66~P67)

 

 

 

 

 

 

 

 

 

 

VOL2

Output Low Voltage (P64,P65)

IOL = 16.0 mA

 

 

0.4

V

 

IPH

Pull-high current

Pull-high active, input pin at

-50

-100

-240

∝A

 

VSS

 

 

 

 

 

 

 

 

IPD

Pull-down current

Pull-down active, input pin at

25

50

120

∝A

 

VDD

 

 

 

 

 

 

 

 

 

 

All input and I/O pins at VDD,

 

 

 

 

 

ISB

Power down current

output pin floating, WDT

 

 

10

∝A

 

 

 

enabled

 

 

 

 

 

 

 

All input and I/O pins at VDD,

 

 

 

 

 

ISB

Power down current

output pin floating, WDT

 

 

1

∝A

 

 

 

disabled

 

 

 

 

 

 

Operating supply current (VDD=3V) at two

/RESET='High',Fosc=32KHz

 

 

 

 

 

ICC1

(Crystal type, two clocks),

 

15

30

∝A

 

clocks

output pin floating, WDT

 

 

 

 

 

 

 

 

 

 

disabled

 

 

 

 

 

 

Operating supply current (VDD=3V) at two

/RESET=‘High',Fosc=32KHz

 

 

 

 

 

ICC2

(Crystal type, two clocks),

 

19

35

∝A

 

clocks

output pin floating, WDT

 

 

 

 

 

 

 

 

 

 

enabled

 

 

 

 

 

ICC3

Operating supply current (VDD=5.0V) at

/RESET='High', Fosc=2MHz

 

 

2

mA

 

two clocks

(Crystal type, two clocks),

 

 

 

 

output pin floating

 

 

 

 

 

 

 

 

 

 

 

 

ICC4

Operating supply current (VDD=5.0V) at

/RESET='High', Fosc=4MHz

 

 

4.0

mA

 

two clocks

(Crystal type, two clocks),

 

 

 

 

output pin floating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This specification is subject to change without prior notice.

57

 

 

07.01.2003 (V1.3)

Page 56 Page 58
Page 57
Image 57
ELAN Home Systems EM78P458AP, EM78P459AK, EM78P459AM, EM78P458AM manual Electrical Characteristics, Crystal type, two clocks
Page 56 Page 58

EM78P458, EM78P459AM, EM78P458AM, EM78P459AK, EM78P459 specifications

ELAN Home Systems offers a range of advanced microcontrollers, including the EM78P458AP, EM78P459, EM78P459AK, EM78P458AM, and EM78P459AM, that cater to various applications in the consumer electronics sector. These microcontrollers are known for their high efficiency, low power consumption, and robust performance, making them ideal for a wide range of smart home devices.

The EM78P458AP and EM78P459 models feature an 8-bit architecture, enabling efficient processing for applications requiring moderate complexity. They are equipped with a variety of I/O options, including GPIO, UART, and ADC, facilitating seamless integration with numerous peripherals. This flexibility allows developers to create customized solutions tailored to specific user needs.

One of the main highlights of these microcontrollers is their low-power operation, which is essential for battery-operated devices. This is particularly appealing in smart home contexts, where devices are expected to maintain long operational lifetimes without frequent battery replacements. The EM78P458AP and EM78P459 series prioritize energy efficiency, ensuring that they consume minimal power during both active and idle states.

In terms of memory, these microcontrollers also provide substantial ROM and RAM capacities, which enhance their ability to handle complex programs and data. The EM78P459AK variant adds additional features that empower developers with greater flexibility in terms of code storage and execution.

Another critical aspect of these microcontrollers is their built-in protection mechanisms, including voltage and thermal protection, which ensure safe operations under varying environmental conditions. This is vital for home automation systems, where device reliability is paramount to user satisfaction.

The EM78P458AM and EM78P459AM models further extend the family with added functionalities, such as enhanced communication capabilities featuring protocols like I2C and SPI. This facilitates robust inter-device communication, making it easier to integrate various smart home devices into a cohesive network.

Overall, ELAN Home Systems’ EM78P458 and EM78P459 series microcontrollers stand out for their versatile application potential, low power consumption, and reliability. With their innovative technologies and characteristics, they are well-suited for driving the next generation of smart home solutions, ensuring convenience, efficiency, and connectivity for users worldwide.
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