upd16879 Renesas Electronics Corporation., upd16879 Datasheet - Page 22

• Manufacturer Part Number: upd16879
• Description: Monolithic Quad H Bridge Driver Circuit
• Manufacturer: Renesas Electronics Corporation.

[7th, 8th byte]
(most significant bit) of the 8th byte. The pulse cycle can be set to a value in the range of 222 ns to 14.563 ms in
units of 222 ns (with a 4.5 MHz clock).
[9th byte]
“0”. Bit D5 isn’t use.
input to a 5-bit D/A converter. By dividing this voltage by 5-bit data, a current setting reference voltage can be set
inside the IC within the range of 100 to 500 mV, in units of 20 mV. If external source is used, the V
V
(setting reference voltage is maximum) control is possible.
22
DD
The 7th byte and 8th byte set the pulse cycle of the
The pulse cycle is specified using 16 bits: bits D0 (least significant bit) to D7 of the 7th byte, and bits D0 to D7
The 9th byte sets the enable, rotation, and output current of
The enable sets by bit D7, the rotation sets by bit D6, and the output current sets by bits D0 to D4. Bit D5 is fixed
Enable sets by D7 bit.
Rotation sets by D6 bit.
Output current sets by D0 to D4 bits.
The 250 mV (typical) voltage input from external source or internal reference voltage is internally doubled and
pin. If internal reference voltage is used, the V
D7 bit data is “0”: Output high impedance (but, internal counter increase)
D7 bit data is “1”: Output conducts
D6 bit data is “0”: Forward turn (CW mode)
D6 bit data is “1”: Reverse turn (CCw mode)
Enable sets
MSB
Data
Data
Data
Bit
Bit
Bit
Table 11 (A). 7th Byte Data Configuration ( channel data)
Table 11 (B). 8th Byte Data Configuration ( channel data)
Rotation sets
Table 12. 9th Byte Data Configuration ( channel data)
0 or 1
0 or 1
0 or 1
D7
D7
D7
0 or 1
0 or 1
0 or 1
D6
D6
D6
Data Sheet S14188EJ1V0DS00
0 or 1
0 or 1
D5
D5
D5
0
REFsel
0 or 1
0 or 1
0 or 1
MSB
channel.
pin and V
D4
D4
D4
channel.
0 or 1
0 or 1
0 or 1
D3
D3
D3
REF
Output current sets
pin connect GND pin. The 64 steps micro-step
0 or 1
0 or 1
0 or 1
D2
D2
D2
0 or 1
0 or 1
0 or 1
D1
D1
D1
0 or 1
0 or 1
0 or 1
LSB
D0
D0
D0
REFsel
LSB
pin connects
PD16879