参数资料
型号: MC68HC05T7B
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封装: SDIP-56
文件页数: 80/109页
文件大小: 9008K
代理商: MC68HC05T7B
Technical Data
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
70
Resets and Interrupts
MOTOROLA
Resets and Interrupts
triggered only or both positive-edge and high-level triggered. The
level-sensitive triggering option allows multiple external interrupt
sources to be wire-ORed to an external interrupt pin. An external
interrupt request, shown in Figure 5-5, is latched as long as any source
is holding an external interrupt pin low.
Figure 5-5. External Interrupt Timing
Table 5-2. External Interrupt Timing (VDD = 5.0 Vdc)
(1)
1. VDD = 5.0 Vdc ±10%, VSS = 0 Vdc, TA = –40°C to +85°C, unless otherwise noted.
Characteristic
Symbol
Min
Max
Unit
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
125
ns
Interrupt Pulse Period
tILIL
Note(2)
2. The minimum tILIL should not be less than the number of interrupt service routine cycles
plus 19
tcyc.
tcyc
Table 5-3. External Interrupt Timing (VDD = 3.3 Vdc)
(1)
1. VDD = 3.3 Vdc ±10%, VSS = 0 Vdc, TA = –40°C to +85°C unless otherwise noted.
Characteristic
Symbol
Min
Max
Unit
Interrupt Pulse Width Low (Edge-Triggered)
tILIH
250
ns
Interrupt Pulse Period
tILIL
Note(2)
2. The minimum tILIL should not be less than the number of interrupt service routine cycles
plus 19
tcyc.
tcyc
IRQ
tILIH
tILIL
tILIH
EXT. INT. PIN
EXT. INT. PIN1
EXT. INT. PINn
.
(INTERNAL)
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