STMicroelectronics ST90R40
The ST90R40 is a ROM LESS member of the ST9 family of microcontrollers, completely developed and produced by SGS-THOMSON Microelectronics using a propnetary n-well HCMOS process. The ROM LESS part may be used for the prototyping and pre-production phases of development, and offers the maximum in program flexibility in production systems. The ST90R40 is fully compatible with the ST9040 ROM version and this datasheet will thus provide only information specific to the ROM LESS device.| Part No. | ST90R40 |
|---|---|
| Datasheet | ST90R40 Download |
| Manufacturer |  STMicroelectronics |
| Description | ROMLESS HCMOS MCU |
| Buy | Stock & Price |
DESCRIPTION
Pin Name 1 AVss 2 AVss 3 NC 4 P44/AIN4 5 P57 6 P56 7 P55 8 P54 9 INT7 10 INTO 11 P53 12 NC 13 P52 14 P51 15 P50 16 OSCOUT 17 Vss 18 Vss 19 NC 20 OSCIN 21 RESET 22 P37/T10UTB 23 P36/T11NB 24 P35/T10UTA Pin Name 25 P34/T11NA 26 P33fTOOUTB 27 P32fTOINB 28 P31fTOOUTA 29 P30/P/DfTOINA 30 A15 31 A14 32 NC 33 A13 34 A12 35 A11 36 A10 37 A9 38 AS 39 AO/DO 40 A1/D1 Pin Name 64 P20/NMI 63 NC 62 Vss 61 P70/SIN 60 P71/SOUT 59 P72/INT4fTXCLK /CLKOUT 58 P73/INT5 /RXCLKIADTRG 57 P74/P/D/INT6 56 P75/WAIT 55 P76/WDOUT /BUSREQ 54 P77/WDIN /BUSACK 53 R/W 52 NC 51 DS 50 AS 49 NC 48 Voo 47 Voo 46 A7/D7 45 A6/D6 44 A5/D5 43 A4/D4 42 A3/D3 41 A21D2 Pin Name 80 AVoo 79 NC 78 P47/AIN7 77 P46/AIN6 76 P45/AIN5 75 P43/AIN3 74 P42/AIN2 73 P41/AIN1 72 P40/AINO 71 P27/RRDY5 70 P26/INT3 /RDSTB5!P/D 69 P25/WRRDY5 68 P24/INT1 /WRSTB5 67 P23/SDO 66 P22/INT2/SCK 65 P21/SDI/P/D l.U _so_t5_7_ _ _ _ _ _ _ _ _ _ _ _ ~~~~=~~ 276 Figure 2. 68 Pin PLCC Package 60 44 61 f -------------~ 43 I I 1: I I 1:● 68 1 ~ ~ 21 1: 1: I 1: I I 1: el I~I 27 10 26 VROD1649 Table 2.
