UPSD3433E-40U6 STMicroelectronics, UPSD3433E-40U6 Datasheet - Page 134

• Manufacturer Part Number: UPSD3433E-40U6
• Description: MCU 8BIT 8032 128KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433E-40U6

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER497-5218 - KIT DEVELOPMENT FOR UPSD3400497-2381 - CABLE PROGRAMMER FLASH LINK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4907

I
134/300
2
C interface
Table 86.
Table 87.
1. 833KHz is maximum for UPSD34xx devices.
Table 88
f
typically slightly less than the minimum Start condition hold time, t
speed.
Important note: The SCL bit rate f
S1CON before a value is chosen for SMPL_SET[6:0] in the SFR S1SETUP.
Table 88.
OSC
speed, f
Standard
I
2
C bus
SS_EN bit
and f
Contents of S1SETUP
...
...
I
SCL
0
1
1
1
1
1
1
2
provides recommended settings for S1SETUP based on various combinations of
C bus speed
SCL
Standard
Number of I
condition)
Start condition hold time
S1SETUP examples for various I
frequencies
High
Fast
Recommended
S1SETUP value
Number of samples
Time between samples
Total sampled period
. Note that the “Total Sample Period” times in
Parameter
SMPL_SET[6:0]
XXXXXXXb
0000000b
0000001b
0000010b
0001011b
0010111b
1111111b
2
C bus samples taken after 1-to-0 transition on SDA (Start
...
...
Range of I
SCL
401 kHz to 833 kHz
101 kHz to 400 kHz
166.6 ns
3332 ns
must first be determined by bits CR[2:0] in the SFR
6 MHz
93h
Up to 100 kHz
20
Resulting value for
UPSD3422, UPSD3433, UPSD3434, UPSD3454
(f
2
C clock speed
SCL
00h (default)
S1SETUP
2
)
3332 ns
12 MHz
C bus speeds and oscillator
8Bh
FFh
83.3 ns
80h
81h
82h
97h
...
...
A7h
Oscillator frequency, f
40
(1)
Table 87 on page 134
3332 ns
24 MHz
41.6 ns
CFh
Minimum Start condition hold
80
HLDSTA
samples taken after 1-to-0
Resulting number of
time (
3333 ns
33 MHz
30 ns
OSC
on SDA line
EEh
for a given I
4000 ns
111
600 ns
160 ns
t
HLDSTA
128
12
24
...
...
1
1
2
3
are
3200 ns
40 MHz
)
25 ns
FFh
128
2
C bus