Z8F6421PM020SC Datasheet, PDF (240/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
220
Table 107. External RC Oscillator Electrical Characteristics and Timing
Symbol Parameter
V_DD
R_EXT
Operating Voltage Range
External Resistance from
XIN to VDD
T_A = –40⁰C to 125⁰C
Minimum Typical¹ Maximum Units Conditions
2.70¹
–
–
V
40
45
200
kΩ V_DD = V_VBO
C_EXT External Capacitance from
0
XIN to VSS
20
1000
pF
F_OSC External RC Oscillation
–
–
4
MHz
Frequency
1 When using the external RC oscillator mode, the oscillator may stop oscillating if the power supply drops below
2.7V, but before the power supply drops to the voltage brown-out threshold. The oscillator will resume oscillation as
soon as the supply voltage exceeds 2.7V.
Table 108. Reset and STOP Mode Recovery Pin Timing
T_A = –40⁰C to 125⁰C
Symbol Parameter
Minimum Typical Maximum Units Conditions
T_RESET RESET pin assertion to
4
–
–
T_CLK Not in STOP Mode.
initiate a System Reset.
T_CLK = System Clock period.
T_SMR STOP Mode Recovery pin
10
20
40
ns RESET, DBG, and GPIO pins
Pulse Rejection Period
configured as SMR sources.
PS019915-1005
Electrical Characteristics