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深圳市川大科技有限公司 
| 联系人：孙 女士 (销售) |
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| 电 话：0755-83123805 |
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| 手 机：13510586825 |
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| 供应EM78P468BH晶圆祼片价格好 |
CPU Configuration
• 4K×13 bits on-chip OTP-ROM
• 144 bytes general purpose register
• 128 bytes on-chip data RAM
• 272 bytes SRAM
• 8-level stacks for subroutine nesting
• Power-on voltage detector provided
(1.7±0.1V) for EM78P468B
􀂄 I/O Port Configuration
• Typically, 12 bidirectional tri-state I/O ports.
• 16 bidirectional tri-state I/O ports shared with
LCD segment output pin.
• Up to 28 bidirectional tri-state I/O ports
􀂄 Operating Voltage and Temperature Range:
EM78P468B
• Commercial: 2.1V ~ 5.5V. (at 0°C ~+70°C)
• Industrial: 2.3V ~ 5.5V. (at -40°C ~+85°C)
LCD Circuit
• Common driver pins: four
• Segment driver pins: 32
• LCD Bias: 1/3, 1/2 bias
• LCD Duty: 1/4, 1/3, 1/2 duty
􀂄 Package Type:
• Dice form: 59 pins
• QFP-64 pin: EM78P468BQ64
(Body 14mm×20mm)
• LQFP-64 pin: EM78P468BL64
(Body 7mm×7mm)
• LQFP-44 pin: EM78P468BL44
(Body 10mm×10mm)
• QFP-44 pin: EM78P468BQ44
(Body 10mm×10mm)
• QFP-64 pin: EM78P468BQ64B
(Body 14mm×14mm)
Note: These are Green products which do not
contain hazardous substances |
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