AM6548, AM6528, AM6526
ZHCSLA7B –DECEMBER 2019 –REVISED JUNE 2021
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7.9.3 System Timing
For more details about features and additional description information on the subsystem multiplexing signals,
see the corresponding sections within 节6.3, Signal Descriptions and 节8, Detailed Description.
表7-6. System Timing Conditions
PARAMETER
MIN
0.5
3
MAX UNIT
INPUT CONDITIONS
SRI
Input slew rate
5
V/ns
pF
OUTPUT CONDITIONS
CL
Output load capacitance
30
7.9.3.1 Reset Electrical Data/Timing
表7-7, 表7-8, 图7-6, 图7-7, and 图7-8 present the reset timing requirements and switching characteristics.
表7-7. Reset Timing Requirements
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
PORz Pin
RST1 tw(PORzL)
Pulse Width minimum, PORz low
Hold time, PORz active (low) after all supplies valid
RESETz Pin
2000
ns
ns
RST2 th(SUPPLIES VALID - PORz)
2000000
RST5 tw(RESETzL)
Pulse Width minimum, RESETz low
MCU_PORz Pin
400
ns
RST13 tw(MCU_PORzL)
Pulse Width minimum, MCU_PORz
Hold time, MCU_PORz active (low) after all supplies valid
2000
ns
ns
RST8 th(SUPPLIES VALID -
2000000
MCU_PORz)
MCU_RESETz Pin
Pulse Width minimum, MCU_RESETz
MCU_BYP_POR Pin
RST9 tw(MCU_RESETzL)
400
ns
ns
RST12 tsu(MCU_BYP_POR-MCU_PORz) Setup time, MCU_BYP_POR active (high) before all supplies are
valid
1000000
表7-8. Reset Switching Characteristics
NO.
PARAMETER
DESCRIPTION
MIN
MAX
UNIT
PORz Pin
RST3 td(PORz-PORz_OUT low)
RST4 td(PORz-PORz_OUT high)
Delay time, PORz active (low) to PORz_OUT active (low)
Delay time, PORz inactive (high) to PORz_OUT inactive (high)
RESETz Pin
0
0
ns
ns
RST6 td(RESETz-RESETSTATz low)
RST7 td(RESETz-RESETSTATz high)
Delay time, RESETz active (low) to RESETSTATz active (low)
4106
ns
ns
Delay time, RESETz inactive (high) to RESETSTATz inactive
(high)
380000
MCU_RESETSTATz Pin
RST10 td(MCU_RESETz-
Delay time, MCU_RESETz active (low) to MCU_RESETSTATz
active (low)
4106
ns
ns
MCU_RESETSTATz low)
RST11 td(MCU_RESETz-
Delay time, MCU_RESETz inactive (high) to MCU_RESETSTATz
inactive (high)
289000
MCU_RESETSTATz high)
MCU_PORz Pin
RST14 td(MCU_PORz-MCU_PORz_OUT Delay time, MCU_PORz active (low) to MCU_PORz_OUT active
0
0
ns
ns
(low)
low)
RST15 td(MCU_PORz-MCU_PORz_OUT Delay time, MCU_PORz inactive (high) to MCU_PORz_OUT
inactive (high)
high)
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