ST6G3238E Pin connection and function
5/19
● CLK: Clock is a host-to-card signal. CLK operates in push-pull mode.
● Feedback (return) Clock is a feedback clock signal from the level shifter to host for
controlling delays.
● CD: Card detect pulls HIGH state of input to V
CCA
. This pin is protected against ESD
up to 8 kV contact.
● WP: Write protect pulls HIGH state of input to V
CCA
. This pin is protected against ESD
up to 8 kV contact.
Table 4. Pin description
μTFBGA pin n° TSSOP pin n° Type Side Symbol Name and function
A2 3 I A side CMD-dir
Command direction
HIGH = A to B
LOW = B to A
D2 4 I/O A side CMD.h A-side command
D4 22 I/O B side CMD B-side command
A3 1 I A side DAT0-dir
Data direction
HIGH = A to B (write)
LOW = B to A (read)
D1 5 I/O A side DAT0.h Data input / output
D5 21 I/O B side DAT0 Data input / output
E3 15 I A side DAT123-dir
Data direction
HIGH = A to B (write)
LOW = B to A (read)
E1 6 I/O A side DAT1.h Data input / output
A1 7 I/O A side DAT2.h Data input / output
B1 8 I/O A side DAT3.h Data input / output
E5 20 I/O B side DAT1 Data input / output
A5 19 I/O B side DAT2 Data input / output
B5 18 I/O B side DAT3 Data input / output
C1 10 I A side CLK.h Clock input
C5 17 O B side CLK Clock output
E2 9 O A side CLK-f Clock feedback
D3 23 - A side CD Card detect
E4 16 - A side WP Write protect
B3 2 - A side V
CCA
Power supply
B4 24 - B side V
CCB
Power supply
C3, C4 11, 14 - - GND Ground (0 V)
A4, B2, C2 12, 13 - - NC No connect
Obsolete Product(s) - Obsolete Product(s)
