7 Electrical specifications
7 Electrical specifications
ST40RA
7.1 DC absolute maximum ratings
Symbol
Parameter
Min
Max
Units Notes
VDDCORE
VDDIO
VDDRTC
VIO
VIORTC
VIOCLK
IO
TS
TA
Core DC supply voltage
I/O DC supply voltage
RTC DC supply voltage
Voltage on input, output and bidirectional pins.
Voltage on input pins on VDDRTC supply
(LPCLKIN, LPCLKOSC)
Voltage on CLKIN and CLKOSC pins
DC output current
Storage temperature (ambient)
Temperature under bias (ambient)
2.1
V
a,b
4.0
V
2.1
V
GND -0.6 VDDIO + 0.6
V
GND -0.6 VDDRTC + 0.6 V
GND -0.6
-55
-55
VDDCORE + 0.6 V
25
mA
125
deg C
125
deg C
Table 20: Absolute maximum ratings
a. Stresses greater than those listed under Table 20: Absolute maximum ratings may cause
permanent damage to the device. This is a stress rating only and functional operation of the device
at these or any other conditions above those indicated in the operating sections of this specification
is not implied. Exposure to absolute maximum rating conditions for extended period may effect
reliability.
b. All I/O pins are 3.3 V tolerant except CLKIN, LPCLKIN, CLKOSC and LPCLKOSC.
7.1.1 Fmax clock domains
Function clock
CPU_CLK
STBUS_CLK
PER_CLK
LMI_CLK
EMI_SS_CLK
EMI_EXT
PCI_EXT
ST40RA200XH6
ST40RA166XH6
200 MHz
100 MHz
50 MHz
166 MHz
111 MHz
55 MHz
133 MHz
100 MHz
100 MHz
66 MHz
100 MHz
111 MHz
100 MHz
66 MHz
Table 21: Fmax clock domains
ST40RA150XH6
150 MHz
100 MHz
50 MHz
100 MHz
100 MHz
100 MHz
66 MHz
43/94 STMicroelectronics
ADCS 7260755H