ST92124V1Q-Auto STMicroelectronics, ST92124V1Q-Auto Datasheet - Page 388

• Manufacturer Part Number: ST92124V1Q-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST92124V1Q-Auto

• Internal Memory: Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 TM (Emulated EEPROM)
• Minimum Instruction Time: 83 ns (24 MHz int. clock)

ST92124xxx-Auto/150xxxxx-Auto/250xxxx-Auto
EXTERNAL BUS TIMING TABLE (MC=1)
(V
Notes:
The expressions in the “Formula” column show how to calculate the typical parameter value depending on the CPU clock
period and the number of inserted wait cycles. The values in the Min column give the parameter values for a CPU clock
at 12MHz and two wait states for T1 and T2.
For certain versions of the ST92150-Auto, the external bus has high-drive capabilities.
Legend:
Tck = INTCLK period = OSCIN period when OSCIN is not divided by 2;
TckH = INTCLK high pulse width (normally = Tck/2, except when INTCLK = OSCIN, in which case it is OSCIN high pulse
width)
TckL = INTCLK low pulse width (normally = Tck/2, except when INTCLK = OSCIN, in which case it is OSCIN low pulse
width)
P = clock prescaling value (=PRS; division factor = 1+P)
Wa = wait cycles on ALE; = max (P, programmed wait cycles in EMR2, requested wait cycles with WAIT)
Wd
388/430
N°
10
11
12
13
14
15
16
17
1
1
2
3
4
5
6
7
8
9
DD
=
TsA (ALE)
ThALE (A)
TwALE
TdAz (OEN)
TdOEN(Az)
TwOEN
TwWEN
TdOEN (DR)
ThDR (OEN)
ThOEN(A)
ThWEN(A)
TvA(OEN)
TvA(WEN)
TsD (WEN)
ThWEN(DW)
TdALE (WEN)
TdALE (OEN)
= 5V ± 10%, T
wait cycles on OEN and WEN ; = max (P, programmed wait cycles in WCR, requested wait cycles with WAIT)
Symbol
= 2*OSCIN period when OSCIN is divided by 2;
=
OSCIN period / PLL factor when the PLL is enabled
A
Address Set-up Time before ALE ↓
Address Hold Time after ALE ↓
ALE High Pulse Width
Address Float (P0) to OEN ↓
P0 driven after OEN ↑
OEN Low Pulse Width
WEN Low Pulse Width
OEN ↓ to Data Valid Delay
Data hold time after OEN ↑
Address (A21:A8) hold time after OEN ↑
Address (A21:A8) hold time after WEN ↑
Address (A21:A0) valid to OEN ↑
Address (A21:A0) valid to WEN ↑
Data Set-up time before WEN ↑
Data Hold Time after WEN ↑
ALE ↑ to WEN ↑ Delay
ALE ↑ to OEN ↑ Delay
=
–
40°C to +125°C, C
Parameter
Load
= 0 to 50pF
Tck*Wa+TckH - 48
TckL - 31
Tck*Wa+TckH - 58
0
TckL - 13
Tck*Wd+TckH - 36
Tck*Wd+TckH - 36
Tck*Wd+TckH - 44
0
0
0
Tck (Wd+Wa+1.5) - 76
Tck (Wd+Wa+1.5) - 44
Tck*Wd+TckH - 158
TckL - 37
Tck (Wd+Wa+1.5) - 54
Tck (Wd+Wa+1.5) - 50
Formula
Value (see note)
Min
160
150
172
172
382
414
404
408
10
29
50
0
0
0
0
5
Max
164
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns