Stollmann BlueMod+SR/AI, Hardware Reference Manual

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SR/AI
SR/AP
Hardware Reference
Release r09 www.stollmann.de Page 32 of 76
CSR8811 Related Signals:

BT-ACT, BT-STAT, WLAN-DNY, BT-PER

SLCK (caution: also connected to STM-32)
T
amb
= 25°C
Symbol Item Condition Limit Unit
Min Typ Max
V
IL
Low-Level Input Voltage VSUP = 3,3V - 0,4 - 0,4 V
V
IH
High-Level Input Voltage 0,7xVSUP - VSUP+0,4 V
V
OL
Low-Level Output
Voltage
I
OL
= 4mA - - 0,4 V
V
OH
High-Level Output
Voltage
I
OH
= -4mA 0,75xVSUP - - V
I
sp-u
Input-current Strong pull-up -150 -40 -10

A
I
sp-d
Input-current Strong pull-down +10 +40 +150

A
I
wp-u
Input-current Weak pull-up -5,0 -1,0 -0,33

A
I
wp-d
Input-current Weak pull-down +0,33 +1,0 +5,0

A
I
lc
I/O pad leakage current n.a.

A
C
l
Input Capacitance 1,0 - 5,0 pF
Table 12: DC Characteristics, Digital IO (CSR8811 Related)
Note: SLCK is connected to both STM32 and CSR8811 so has to fit to STM32 and CSR8811
requirements at the same time.