Cypress CY8C21634 用户手册
CY8C21634, CY8C21534
CY8C21434, CY8C21334, CY8C21234
Document Number: 38-12025 Rev. *O
Page 18 of 45
Electrical Specifications
This section presents the DC and AC electrical specifications of the CY8C21x34 PSoC device. For up to date electrical specifications,
http://www.cypress.com/psoc
.
Specifications are valid for -40
o
C
≤ T
A
≤ 85
o
C and T
J
≤ 100
o
C as specified, except where noted.
Refer
on page 26 for the electrical specifications on the internal main oscillator (IMO) using SLIMO mode.
Table 11. Units of Measure
Symbol
Unit of Measure
Symbol
Unit of Measure
o
C
degree Celsius
μW
microwatts
dB
decibels
mA
milli-ampere
fF
femto farad
ms
milli-second
Hz
hertz
mV
milli-volts
KB
1024 bytes
nA
nanoampere
Kbit
1024 bits
ns
nanosecond
kHz
kilohertz
nV
nanovolts
k
Ω
kilohm
W
ohm
MHz
megahertz
pA
picoampere
M
Ω
megaohm
pF
picofarad
μA
microampere
pp
peak-to-peak
μF
microfarad
ppm
parts per million
μH
microhenry
ps
picosecond
μs
microsecond
sps
samples per second
μV
microvolts
s
sigma: one standard deviation
μVrms
microvolts root-mean-square
V
volts
5.25
4.75
3.00
93 kHz
12 MHz
24 MHz
CPU Frequency
V
dd V
o
lt
a
g
e
5.25
4.75
3.00
93 kHz
12 MHz
24 MHz
IMO Frequency
V
dd V
o
lt
a
g
e
3.60
6 MHz
SL
IM
O
Mod
e
=
0
SLIMO
Mode=0
2.40
SLIMO
Mode=1
SLIMO
Mode=1
SLIMO
Mode=1
2.40
3 MHz
Va
lid
O
pe
ra
tin
g
R
eg
io
n
SLIMO
Mode=1
SLIMO
Mode=0
Figure 13. Voltage versus CPU Frequency
Figure 14. IMO Frequency Trim Options