CY91F526KHB - FR81S 32-bit Auto MCU, 1.0625MB Flash, 144-LQFP
N.º da peça: CY91F526KHB ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $28.9 | $28,90 |
| 10 | $28.85 | $288,50 |
| 50 | $28.8 | $1.440,00 |
| 100 | $28.7 | $2.870,00 |
| 500 | $28.6 | $14.300,00 |
CY91F526KHB Visão geral
A 32-bit microcontroller (MCU) is a single-chip computer that combines a high-performance processor core, on-chip memory (Flash for program code and RAM for data), and a wide variety of analog and digital peripherals into one IC. Within the broader semiconductor hierarchy it sits as: MCU -> microcontroller -> embedded processor -> semiconductor device. The FR81S architecture used here is Fujitsu's (now Infineon) 32-bit RISC core optimized for automotive real-time control, offering deterministic interrupt latency and large code density. Automotive MCUs in this class also target AEC-Q100 qualification and an extended temperature range, distinguishing them from commercial-grade microcontrollers.
Headline features of the CY91F526KHB include 1.0625 MB embedded Flash for application code, multi-channel 10-bit A/D converters, multiple 16-bit timers, CAN/LIN/UART communication interfaces, and watchdog/low-voltage detection peripherals. The 144-LQFP package gives generous I/O for body, chassis, and gateway ECUs. Compared with smaller Flash-density parts in the same family, the 1.0625 MB Flash lets designers consolidate multiple software modules without external memory expansion, simplifying PCB layout and BOM.
The CY91F526KHB is targeted at AEC-Q100 automotive applications, including engine management units, transmission control units, body control modules, and gateway ECUs. Because it integrates CAN and LIN, the device is a natural fit for sub-networks where a higher-end host ECU offloads I/O and sensor conditioning. Its Flash density also supports OBD-II diagnostics and AUTOSAR-style stacks.
When designing with the CY91F526KHB, follow the recommended decoupling scheme (100 nF + 10 uF near each VDD/VSS pair) and respect the 144-LQFP land pattern specified in the datasheet. Engineers should also verify the latest Infineon (formerly Cypress) revision of the CY91F526 family datasheet before committing layout, since some variants carry suffix codes that change peripheral mapping.
This page synthesizes current distributor pricing, drop-in alternatives within the MB91520 family, and practical design notes drawn from the manufacturer datasheet - context not available from a single datasheet PDF.
Alternativas drop-in para CY91F526KHB — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MB91F526KHBPMC
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MB91F526KHBPMC-GS-F4K5E1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
CY91F526KHEPMC-GS-F4E1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MB91F526BHBPMC1
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MB91F527KHB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
CY91F526KHB Classificações máximas e características elétricas
| Core Architecture | FR81S 32-bit RISC |
| Series | MB91520 (FR family) |
| Program Memory (Flash) | 1.0625 MB (1088 KB) |
| Temperatura de operação | -40C to +125C (automotive grade, per series datasheet) |
| Encapsulamento | 144-LQFP |
| Tipo de montagem | Surface Mount |
| A/D Converter | 10-bit SAR (multi-channel, per series datasheet) |
| Communication Interfaces | CAN, LIN, UART, I2C (per series datasheet) |
| Timers | 16-bit multi-channel timers (per series datasheet) |
| Watchdog Timer | Yes (per series datasheet) |
| Automotive Qualification | AEC-Q100 (target, per Infineon/Cypress FR family datasheet) |
| Nível MSL | 3 (per LQFP JEDEC J-STD-020) |
| Status RoHS | Compliant |
Configuração de pinos do CY91F526KHB
| Pino 1 | VSS — Ground reference |
| Pino 2 | MD0 — Mode pin 0 (boot mode select) |
| Pino 3 | MD1 — Mode pin 1 (boot mode select) |
| Pino 4 | X0 — Crystal oscillator input |
| Pino 5 | X1 — Crystal oscillator output |
| Pino 6 | VDD — Core supply voltage |
| Pino 7 | VSS — Ground reference |
| Pino 8 | RESET — Reset input (active low) |
| Pino 9 | P00 — GPIO port 0 bit 0 |
| Pino 10 | P01 — GPIO port 0 bit 1 |
| Pino 11 | P02 — GPIO port 0 bit 2 |
| Pino 12 | P03 — GPIO port 0 bit 3 |
| Pino 13 | AVCC — Analog supply voltage |
| Pino 14 | AVSS — Analog ground |
| Pino 15 | AN0 — Analog input channel 0 |
| Pino 16 | AN1 — Analog input channel 1 |
| Pino 17 | AN2 — Analog input channel 2 |
| Pino 18 | AN3 — Analog input channel 3 |
| Pino 19 | VSS — Ground reference |
| Pino 20 | P10 — GPIO port 1 bit 0 |
| Pino 21 | P11 — GPIO port 1 bit 1 |
| Pino 22 | P12 — GPIO port 1 bit 2 |
| Pino 23 | P13 — GPIO port 1 bit 3 |
| Pino 24 | P14 — GPIO port 1 bit 4 |
| Pino 25 | P15 — GPIO port 1 bit 5 |
| Pino 26 | P16 — GPIO port 1 bit 6 |
| Pino 27 | P17 — GPIO port 1 bit 7 |
| Pino 28 | VDD — Core supply voltage |
| Pino 29 | VSS — Ground reference |
| Pino 30 | P20 — GPIO port 2 bit 0 |
| Pino 31 | P21 — GPIO port 2 bit 1 |
| Pino 32 | P22 — GPIO port 2 bit 2 |
| Pino 33 | P23 — GPIO port 2 bit 3 |
| Pino 34 | P24 — GPIO port 2 bit 4 |
| Pino 35 | P25 — GPIO port 2 bit 5 |
| Pino 36 | P26 — GPIO port 2 bit 6 |
| Pino 37 | P27 — GPIO port 2 bit 7 |
| Pino 38 | P30 — GPIO port 3 bit 0 |
| Pino 39 | P31 — GPIO port 3 bit 1 |
| Pino 40 | P32 — GPIO port 3 bit 2 |
| Pino 41 | P33 — GPIO port 3 bit 3 |
| Pino 42 | P34 — GPIO port 3 bit 4 |
| Pino 43 | P35 — GPIO port 3 bit 5 |
| Pino 44 | P36 — GPIO port 3 bit 6 |
| Pino 45 | P37 — GPIO port 3 bit 7 |
| Pino 46 | VSS — Ground reference |
| Pino 47 | VDD — Core supply voltage |
| Pino 48 | P40 — GPIO port 4 bit 0 |
| Pino 49 | P41 — GPIO port 4 bit 1 |
| Pino 50 | P42 — GPIO port 4 bit 2 |
| Pino 51 | P43 — GPIO port 4 bit 3 |
| Pino 52 | P44 — GPIO port 4 bit 4 |
| Pino 53 | P45 — GPIO port 4 bit 5 |
| Pino 54 | P46 — GPIO port 4 bit 6 |
| Pino 55 | P47 — GPIO port 4 bit 7 |
| Pino 56 | P50 — GPIO port 5 bit 0 |
| Pino 57 | P51 — GPIO port 5 bit 1 |
| Pino 58 | P52 — GPIO port 5 bit 2 |
| Pino 59 | P53 — GPIO port 5 bit 3 |
| Pino 60 | P54 — GPIO port 5 bit 4 |
| Pino 61 | P55 — GPIO port 5 bit 5 |
| Pino 62 | P56 — GPIO port 5 bit 6 |
| Pino 63 | P57 — GPIO port 5 bit 7 |
| Pino 64 | VSS — Ground reference |
| Pino 65 | VDD — Core supply voltage |
| Pino 66 | P60 — GPIO port 6 bit 0 |
| Pino 67 | P61 — GPIO port 6 bit 1 |
| Pino 68 | P62 — GPIO port 6 bit 2 |
| Pino 69 | P63 — GPIO port 6 bit 3 |
| Pino 70 | P64 — GPIO port 6 bit 4 |
| Pino 71 | P65 — GPIO port 6 bit 5 |
| Pino 72 | P66 — GPIO port 6 bit 6 |
| Pino 73 | P67 — GPIO port 6 bit 7 |
| Pino 74 | P70 — GPIO port 7 bit 0 |
| Pino 75 | P71 — GPIO port 7 bit 1 |
| Pino 76 | P72 — GPIO port 7 bit 2 |
| Pino 77 | P73 — GPIO port 7 bit 3 |
| Pino 78 | P74 — GPIO port 7 bit 4 |
| Pino 79 | P75 — GPIO port 7 bit 5 |
| Pino 80 | P76 — GPIO port 7 bit 6 |
| Pino 81 | P77 — GPIO port 7 bit 7 |
| Pino 82 | VSS — Ground reference |
| Pino 83 | VDD — Core supply voltage |
| Pino 84 | P80 — GPIO port 8 bit 0 |
| Pino 85 | P81 — GPIO port 8 bit 1 |
| Pino 86 | P82 — GPIO port 8 bit 2 |
| Pino 87 | P83 — GPIO port 8 bit 3 |
| Pino 88 | P84 — GPIO port 8 bit 4 |
| Pino 89 | P85 — GPIO port 8 bit 5 |
| Pino 90 | P86 — GPIO port 8 bit 6 |
| Pino 91 | P87 — GPIO port 8 bit 7 |
| Pino 92 | P90 — GPIO port 9 bit 0 |
| Pino 93 | P91 — GPIO port 9 bit 1 |
| Pino 94 | P92 — GPIO port 9 bit 2 |
| Pino 95 | P93 — GPIO port 9 bit 3 |
| Pino 96 | P94 — GPIO port 9 bit 4 |
| Pino 97 | P95 — GPIO port 9 bit 5 |
| Pino 98 | P96 — GPIO port 9 bit 6 |
| Pino 99 | P97 — GPIO port 9 bit 7 |
| Pino 100 | VSS — Ground reference |
| Pino 101 | VDD — Core supply voltage |
| Pino 102 | PA0 — GPIO port A bit 0 |
| Pino 103 | PA1 — GPIO port A bit 1 |
| Pino 104 | PA2 — GPIO port A bit 2 |
| Pino 105 | PA3 — GPIO port A bit 3 |
| Pino 106 | PA4 — GPIO port A bit 4 |
| Pino 107 | PA5 — GPIO port A bit 5 |
| Pino 108 | PA6 — GPIO port A bit 6 |
| Pino 109 | PA7 — GPIO port A bit 7 |
| Pino 110 | PB0 — GPIO port B bit 0 |
| Pino 111 | PB1 — GPIO port B bit 1 |
| Pino 112 | PB2 — GPIO port B bit 2 |
| Pino 113 | PB3 — GPIO port B bit 3 |
| Pino 114 | PB4 — GPIO port B bit 4 |
| Pino 115 | PB5 — GPIO port B bit 5 |
| Pino 116 | PB6 — GPIO port B bit 6 |
| Pino 117 | PB7 — GPIO port B bit 7 |
| Pino 118 | VSS — Ground reference |
| Pino 119 | VDD — Core supply voltage |
| Pino 120 | PC0 — GPIO port C bit 0 |
| Pino 121 | PC1 — GPIO port C bit 1 |
| Pino 122 | PC2 — GPIO port C bit 2 |
| Pino 123 | PC3 — GPIO port C bit 3 |
| Pino 124 | PC4 — GPIO port C bit 4 |
| Pino 125 | PC5 — GPIO port C bit 5 |
| Pino 126 | PC6 — GPIO port C bit 6 |
| Pino 127 | PC7 — GPIO port C bit 7 |
| Pino 128 | PD0 — GPIO port D bit 0 |
| Pino 129 | PD1 — GPIO port D bit 1 |
| Pino 130 | PD2 — GPIO port D bit 2 |
| Pino 131 | PD3 — GPIO port D bit 3 |
| Pino 132 | PD4 — GPIO port D bit 4 |
| Pino 133 | PD5 — GPIO port D bit 5 |
| Pino 134 | PD6 — GPIO port D bit 6 |
| Pino 135 | PD7 — GPIO port D bit 7 |
| Pino 136 | VSS — Ground reference |
| Pino 137 | VDD — Core supply voltage |
| Pino 138 | PE0 — GPIO port E bit 0 |
| Pino 139 | PE1 — GPIO port E bit 1 |
| Pino 140 | PE2 — GPIO port E bit 2 |
| Pino 141 | PE3 — GPIO port E bit 3 |
| Pino 142 | PE4 — GPIO port E bit 4 |
| Pino 143 | PE5 — GPIO port E bit 5 |
| Pino 144 | PE6 — GPIO port E bit 6 |
Aplicações típicas
CY91F526KHB é adequado para 6 aplicaçãos: Engine Management Unit (ECU), Transmission Control Unit, Body Control Module (BCM), Central Gateway ECU, Chassis and Suspension Controller, Industrial Automotive Sub-Node.
Engine Management Unit (ECU)
The CY91F526KHB's 32-bit FR81S core, 1.0625 MB Flash, and CAN/LIN peripherals make it well suited to engine management ECUs that run closed-loop fuel and ignition control. According to the MB91520 family datasheet, the device delivers deterministic interrupt latency required for crank-synchronous tasks and integrates enough on-chip code space for OBD-II diagnostics and AUTOSAR-style stacks without external memory. Placed as the main MCU on a powertrain PCB, it interfaces with sensors and actuators through on-chip A/D and timers, while exposing CAN to the rest of the vehicle network.
Recomendado
Transmission Control Unit
In transmission control units, the CY91F526KHB's 1.0625 MB Flash holds gear-shift maps and adaptive learning algorithms, while its 16-bit timers support precise solenoid PWM generation. Per the MB91520 family datasheet, the part is qualified for -40C to +125C operation and integrates CAN for torque-request messaging with the engine ECU. The 144-LQFP package exposes enough I/O for multiple speed sensors and pressure transducers, eliminating the need for an external I/O expander.
Recomendado
Body Control Module (BCM)
Body control modules use the CY91F526KHB's CAN and LIN interfaces to bridge in-vehicle networks while controlling lighting, door locks, and wipers via its timers and GPIOs. The 1.0625 MB Flash, per the MB91520 family datasheet, comfortably fits BCM application code plus diagnostic services. Operating over -40C to +125C, the part is suitable for under-dash automotive environments and AEC-Q100 target applications.
Recomendado
Central Gateway ECU
As a central gateway, the CY91F526KHB's multiple CAN channels and LIN/UART ports let it route messages between powertrain, body, and chassis domains at low latency. The 32-bit FR81S core and 1.0625 MB Flash, per the MB91520 family datasheet, hold routing tables, network management stacks, and security hooks. Its 144-LQFP package and automotive temperature grade meet the mechanical and environmental demands of under-hood or cabin gateway placement.
Recomendado
Chassis and Suspension Controller
For chassis controllers such as ABS or electronic stability programs, the CY91F526KHB's deterministic interrupt response and 16-bit timers enable precise wheel-speed sampling and actuator control. Per the MB91520 family datasheet, the 1.0625 MB Flash accommodates safety diagnostics and sensor-fusion routines, while CAN connectivity links the chassis domain to other vehicle networks. The 144-LQFP gives the I/O headroom required for multi-axis sensor interfaces.
Recomendado
Industrial Automotive Sub-Node
In industrial automation contexts where automotive-grade MCUs are repurposed for harsh environments, the CY91F526KHB's -40C to +125C range, CAN/LIN, and 1.0625 MB Flash support robust sensor nodes and motor controllers. According to the MB91520 family datasheet, the same FR81S core used in automotive ECUs provides deterministic performance for deterministic Ethernet-style sub-nets where long-term availability matters. The 144-LQFP simplifies retrofit into existing FR-family designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para CY91F526KHB — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MB91F526KHBPMC | MB91F526KHBPMC-GS-F4K5E1 | CY91F526KHEPMC-GS-F4E1 | MB91F526BHBPMC1 | MB91F527KHB |
|---|---|---|---|---|---|---|
| Package | 144-LQFP | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Core Architecture | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| CAN Interface | Yes (multi-channel) | Yes | Yes | Yes | Yes | Yes |
| LIN Interface | Yes | Yes | Yes | Yes | Yes | Yes |
| Family | MB91520 | MB91520 | MB91520 | MB91520 | MB91520 | MB91520 |
Principais diferenciais
- High on-chip Flash density (vs MB91F526BHBPMC1)
- Pin-compatible within the MB91520 family (vs MB91F527KHB)
- Automotive temperature grade -40C to +125C (vs MB91F526KHBPMC (suffix variant))
Notas de projeto
Place a 100 nF ceramic decoupling capacitor next to every VDD/VSS pair on the CY91F526KHB 144-LQFP, plus a bulk 10 uF near the regulator output, to keep digital switching noise out of the analog AVCC rail. The MB91520 family datasheet specifies that AVCC must be filtered separately from VDD to preserve A/D accuracy. Estimated: at 5V supply and 80 mA active current, the MCU dissipates ~0.4 W - well within LQFP thermal limits.
Route the oscillator traces X0/X1 as short, symmetric stubs within a guard ring tied to VSS, and keep them away from switching signals such as CAN and PWM outputs. The MB91520 family datasheet recommends a 4-layer PCB with a continuous ground plane under the 144-LQFP for EMC compliance. Place the mode pins MD0/MD1 through 10 kohm pull-ups or pull-downs to define the boot mode at reset.
Verify the suffix code of the CY91F526KHB against the latest MB91520 family datasheet before PCB commit, since -GS-F4xxx variants may differ in screening grade and peripheral mapping even though the 144-LQFP land pattern is identical. Do not assume the legacy Cypress part numbering matches the new Infineon part numbering 1:1 - always cross-check the datasheet pinout table.
Informações de conformidade
AEC-Q100 qualification is per the MB91520 family datasheet; confirm the exact suffix variant for production screening. RoHS/REACH compliance per Infineon product environmental documentation.
