ST7GEME4 STMicroelectronics, ST7GEME4 Datasheet - Page 16

• Manufacturer Part Number: ST7GEME4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7GEME4

• Transmission Rate: 9.6 Kbps to 115 Kbps
• Format: 8-bit, no parity
• Selectable Card Vcc: 1.8 V, 3 V, and 5 V

Electrical characteristics
4.3
4.4
4.4.1
16/28
Table 10.
Supply and reset characteristics
Table 11
otherwise specified.
Table 11.
1. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.
Clock and timing characteristics
General timings
Table 12
Table 12.
1. Data based on typical application software.
2. Time measured between interrupt event and interrupt vector fetch. ∆t
3.
Symbol
Symbol
t
Symbol
V
c(INST)
t
V
V
I
I
V
v(IT)
needed to finish the current instruction execution.
∆t
tPOR
Lsink
Lsink
hys
IT+
IT-
INST
is the number of t
characteristics are measured at T = 0 to +70
characteristics are measured at T = 0 to +70
Reset release threshold
(V
Reset generation threshold
(V
Hysteresis V
V
Instruction cycle time
Interrupt reaction time
t
v(IT)
Low current
High current
DD
DD
DD
LED pins characteristics
Low voltage detector and supervisor characteristics (LVDS)
General timings
rise time rate
= ∆t
rising)
falling)
Parameter
c(INST)
Parameter
Parameter
CPU
IT+
to finish the current instruction execution.
- V
+ 10
1)
IT-
(3)
(1)
(2)
V
PAD
V
> V
PAD
Conditions
f
f
CPU
CPU
DD
> V
=4 MHz
=4 MHz
-2.4 for ROM
Conditions
Conditions
DD
-2.4
o
o
C, V
C unless otherwise specified.
c(INST)
DD
Min
Min
Min
500
3.3
2.5
2
5
20
10
is the number of t
2
- V
SS
Typ
= 5.5 V unless
Typ
200
750
Typ
3.7
3.5
3
6
(1)
CPU
3000
Max
Max
3.9
5.5
Max
12
22
8.4
ST7GEME4
cycles
4
ms/V
Unit
Unit
t
t
Unit
mV
CPU
CPU
mA
ns
µs
V
V